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Research Locale
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A research locale refers to the specific geographical area or location where a study or research is conducted. This locale is carefully chosen based on the study’s objectives, the population of interest, and the relevance of the location to the research questions. Selecting an appropriate research locale is crucial as it impacts the validity and generalizability of the study’s findings. The locale provides the context within which data is collected, analyzed, and interpreted, making it a fundamental aspect of the research action plan . In studies focusing on environmental or biological aspects, understanding the endemic species within the research locale is essential, as these species are native to the area and can significantly influence the research outcomes.
What is Research Locale?
Research locale refers to the specific geographical location or setting where a study is conducted. This area is chosen based on the objectives and requirements of the research, as it provides the necessary context and environment for gathering relevant data. The research locale can range from a small community or institution to a larger region or multiple sites, depending on the scope of the study.
Examples of Research Locale
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- Schools: Conducting a study on the effectiveness of a new teaching method in elementary, middle, or high schools.
- Universities: Researching student behaviors, learning outcomes, or the impact of specific academic programs in higher education settings.
- Hospitals: Investigating patient recovery rates or the efficacy of new treatments in a hospital setting.
- Clinics: Studying the accessibility and quality of healthcare services in local clinics.
- Urban Areas: Examining the effects of urbanization on residents’ quality of life, health, or social interactions.
- Rural Areas: Researching agricultural practices, rural healthcare accessibility, or educational challenges in rural settings.
- Corporations: Studying employee satisfaction, productivity, or the impact of corporate policies in large companies.
- Small Businesses: Investigating the challenges and successes of small business operations in local communities.
- Parks: Researching the usage patterns and benefits of public parks for community health and well-being.
- Libraries: Examining the role of public libraries in community education and engagement.
- Countries: Conducting cross-national studies on economic development, public health, or educational systems.
- Regions: Researching environmental impacts, cultural practices, or regional policies in specific areas such as the Midwest, the Himalayas, or the Amazon Basin.
- Social Media Platforms: Studying user behavior, misinformation spread, or social interactions on platforms like Facebook, Twitter, or Instagram.
- Virtual Communities: Investigating the dynamics of online forums, gaming communities, or e-learning environments.
Research Locale Examples in School
- Classroom Dynamics: Investigating how seating arrangements affect student interaction and participation in a third-grade classroom.
- Reading Programs: Assessing the impact of a new phonics-based reading program on literacy rates among first graders.
- Bullying Prevention: Studying the effectiveness of anti-bullying programs and policies in reducing incidents of bullying among sixth to eighth graders.
- STEM Education: Evaluating the success of extracurricular STEM clubs in improving students’ interest and performance in science and math subjects.
- College Preparation: Analyzing how different college preparatory programs influence the readiness and success of students applying to universities.
- Sports Participation: Researching the correlation between participation in high school sports and academic performance, self-esteem, and social skills.
- Inclusive Practices: Investigating the effectiveness of inclusive education practices on the social integration and academic achievements of students with special needs.
- Assistive Technologies: Evaluating the impact of various assistive technologies on the learning outcomes of students with disabilities.
- Curriculum Impact: Assessing the impact of specialized curricula (e.g., arts, sciences, or technology-focused) on student engagement and academic performance.
- Student Diversity: Studying the effects of a diverse student body on cultural awareness and interpersonal skills among students.
- Innovative Teaching Methods: Examining the outcomes of innovative teaching methods and curricula implemented in charter schools compared to traditional public schools.
- Parental Involvement: Researching how parental involvement in charter schools affects student motivation and achievement.
- Residential Life: Investigating the effects of boarding school environments on student independence, social development, and academic performance.
- Extracurricular Activities: Studying the role of extracurricular activities in shaping the overall development and well-being of boarding school students.
- Multicultural Education: Examining the impact of multicultural education programs on students’ global awareness and acceptance of cultural diversity.
- Language Acquisition: Researching the effectiveness of bilingual education programs in international schools on students’ proficiency in multiple languages.
Examples of Research Locale Quantitative
- Measuring the effect of a new math curriculum on standardized test scores among fourth-grade students.
- Analyzing the relationship between breakfast programs and student attendance rates.
- Quantifying the impact of restorative justice practices on the frequency of disciplinary actions.
- Assessing the correlation between educational technology use in classrooms and student achievement in science.
- Investigating factors influencing graduation rates, including socio-economic status and teacher-student ratios.
- Evaluating the effectiveness of college preparatory programs by comparing college admission rates of participants versus non-participants.
- Measuring the progress of students with Individualized Education Plans (IEPs) in academic performance and behavioral improvements.
- Quantifying the impact of different assistive technologies on academic success.
- Comparing academic performance data between students in magnet schools and traditional public schools.
- Analyzing enrollment data to determine the diversity of student populations and its impact on academic outcomes.
- Assessing academic outcomes by comparing standardized test scores between charter school students and traditional public school students.
- Measuring teacher retention rates in charter schools versus public schools.
- Quantifying academic performance by analyzing GPA and standardized test scores of boarding school students.
- Conducting surveys to collect quantitative data on student well-being and correlating it with academic success.
- Measuring language proficiency levels in bilingual programs using standardized language tests.
- Using surveys to quantify students’ cultural competence and its relationship with academic performance.
Examples of Research Locale Qualitative
- Classroom Interaction: Observing and documenting student-teacher interactions to understand the dynamics of effective teaching strategies.
- Playground Behavior: Conducting interviews and focus groups with students to explore their social interactions and conflict resolution methods during recess.
- Peer Relationships: Exploring the nature of peer relationships and their impact on students’ emotional well-being through in-depth interviews.
- Curriculum Implementation: Gathering teacher narratives on the challenges and successes of implementing a new curriculum.
- Extracurricular Activities: Investigating students’ experiences and perceptions of participating in extracurricular activities through case studies and interviews.
- Career Aspirations: Conducting focus groups to understand how students’ backgrounds and school experiences shape their career aspirations.
- Parent Perspectives: Interviewing parents of students with special needs to gather insights into their experiences and satisfaction with the educational services provided.
- Teacher Experiences: Collecting narratives from special education teachers about their experiences, challenges, and strategies in teaching students with diverse needs.
- Student Motivation: Exploring the factors that motivate students to attend and succeed in magnet schools through in-depth interviews.
- Cultural Integration: Studying how students from diverse backgrounds integrate and interact within the specialized environment of magnet schools.
- Teacher Retention: Investigating the reasons behind teacher retention and turnover in charter schools through qualitative interviews with current and former teachers.
- Parent Involvement: Conducting case studies to understand the role and impact of parent involvement in charter school communities.
- Residential Life: Exploring students’ experiences of residential life, focusing on their personal growth and social development through narrative inquiry.
- Alumni Perspectives: Interviewing alumni to gather insights on how their boarding school experience has influenced their post-graduation life.
- Cultural Adaptation: Examining the experiences of expatriate students adapting to new cultural environments through ethnographic studies.
- Multilingual Education: Conducting interviews with teachers and students to explore the challenges and benefits of multilingual education in international schools.
Research locale Sample Paragraph
This study was conducted in three public high schools located in the urban district of Greenville, North Carolina. The selected schools—Greenville High School, Central High School, and Riverside High School—were chosen for their diverse student populations and varying levels of technological integration in the classroom. Each school enrolls approximately 1,200 students, offering a mix of Advanced Placement (AP) courses, vocational training, and special education programs. Greenville High School recently implemented a 1:1 laptop initiative, providing each student with a personal device for educational use. Central High School utilizes a blended learning model with shared computer labs and mobile tablet carts, while Riverside High School maintains a more traditional approach with limited use of digital tools. This study focuses on 11th-grade students enrolled in English and Mathematics courses, examining how different levels of technology integration impact student engagement and academic performance. Data was collected through a combination of student surveys, standardized test scores, classroom observations, and interviews with teachers and administrators, aiming to provide comprehensive insights into the effectiveness of technology-enhanced learning environments.
How to write Research Locale?
The research locale section of your study provides a detailed description of the location where the research will be conducted. This section is crucial for contextualizing your research and helping readers understand the setting and its potential influence on your study. Here are the steps to write an effective research locale:
1. Introduction to the Locale
- Name and Description : Start by naming the locale and providing a brief description. Include geographic, demographic, and cultural aspects.
- Relevance : Explain why this locale is suitable for your study.
2. Geographic Details
- Location : Provide precise details about the location, including the city, state, country, and any specific areas within these larger regions.
- Map and Boundaries : If possible, include a map to illustrate the locale and its boundaries.
3. Demographic Information
- Population : Describe the population size, density, and composition. Include information on age, gender, ethnicity, and socio-economic status.
- Community Characteristics : Mention any unique characteristics of the community that are relevant to your study.
4. Socio-Economic and Cultural Context
- Economic Activities : Outline the primary economic activities and employment sectors in the locale.
- Cultural Practices : Highlight cultural practices, traditions, and values that might influence the study.
5. Educational and Institutional Context
- Schools and Institutions : If relevant, describe the educational institutions, such as schools or universities, and their role in the community.
- Other Institutions : Mention any other institutions (e.g., healthcare, religious) that might be relevant.
6. Accessibility and Infrastructure
- Transportation : Explain the transportation infrastructure, including roads, public transit, and accessibility.
- Facilities : Mention key facilities like hospitals, libraries, and recreational centers.
7. Environmental Factors
- Climate and Geography : Describe the climate and any geographic features that could impact your research.
- Environmental Conditions : Note any environmental conditions, such as pollution or natural resources, relevant to your study.
FAQ’s
Why is the research locale important.
The research locale is crucial because it influences the study’s context, data collection, and findings’ applicability.
How do you select a research locale?
Selection involves considering relevance to the research question, accessibility, availability of data, and potential impact on results.
What factors influence the choice of a research locale?
Factors include geographical location, demographic characteristics, cultural context, and logistical feasibility.
Can a study have multiple research locales?
Yes, studies can include multiple locales to compare different environments or enhance the study’s generalizability.
How does the research locale affect data collection?
The locale can determine the methods used, participant availability, and types of data collected.
What is the difference between research locale and research setting?
The research locale is the broader geographical area, while the research setting refers to the specific place within that locale.
How do you describe a research locale in a study?
Include geographical details, demographic information, cultural characteristics, and any relevant historical or social context.
Why might a researcher choose an urban research locale?
Urban locales offer diverse populations, accessible resources, and varied social dynamics.
Why might a researcher choose a rural research locale?
Rural locales provide unique insights into less-studied populations, community dynamics, and environmental factors.
What role does the research locale play in qualitative research?
In qualitative research, the locale is integral to understanding participants’ lived experiences and contextual factors.
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A Practical Guide to Writing Quantitative and Qualitative Research Questions and Hypotheses in Scholarly Articles
Edward barroga.
1 Department of General Education, Graduate School of Nursing Science, St. Luke’s International University, Tokyo, Japan.
Glafera Janet Matanguihan
2 Department of Biological Sciences, Messiah University, Mechanicsburg, PA, USA.
The development of research questions and the subsequent hypotheses are prerequisites to defining the main research purpose and specific objectives of a study. Consequently, these objectives determine the study design and research outcome. The development of research questions is a process based on knowledge of current trends, cutting-edge studies, and technological advances in the research field. Excellent research questions are focused and require a comprehensive literature search and in-depth understanding of the problem being investigated. Initially, research questions may be written as descriptive questions which could be developed into inferential questions. These questions must be specific and concise to provide a clear foundation for developing hypotheses. Hypotheses are more formal predictions about the research outcomes. These specify the possible results that may or may not be expected regarding the relationship between groups. Thus, research questions and hypotheses clarify the main purpose and specific objectives of the study, which in turn dictate the design of the study, its direction, and outcome. Studies developed from good research questions and hypotheses will have trustworthy outcomes with wide-ranging social and health implications.
INTRODUCTION
Scientific research is usually initiated by posing evidenced-based research questions which are then explicitly restated as hypotheses. 1 , 2 The hypotheses provide directions to guide the study, solutions, explanations, and expected results. 3 , 4 Both research questions and hypotheses are essentially formulated based on conventional theories and real-world processes, which allow the inception of novel studies and the ethical testing of ideas. 5 , 6
It is crucial to have knowledge of both quantitative and qualitative research 2 as both types of research involve writing research questions and hypotheses. 7 However, these crucial elements of research are sometimes overlooked; if not overlooked, then framed without the forethought and meticulous attention it needs. Planning and careful consideration are needed when developing quantitative or qualitative research, particularly when conceptualizing research questions and hypotheses. 4
There is a continuing need to support researchers in the creation of innovative research questions and hypotheses, as well as for journal articles that carefully review these elements. 1 When research questions and hypotheses are not carefully thought of, unethical studies and poor outcomes usually ensue. Carefully formulated research questions and hypotheses define well-founded objectives, which in turn determine the appropriate design, course, and outcome of the study. This article then aims to discuss in detail the various aspects of crafting research questions and hypotheses, with the goal of guiding researchers as they develop their own. Examples from the authors and peer-reviewed scientific articles in the healthcare field are provided to illustrate key points.
DEFINITIONS AND RELATIONSHIP OF RESEARCH QUESTIONS AND HYPOTHESES
A research question is what a study aims to answer after data analysis and interpretation. The answer is written in length in the discussion section of the paper. Thus, the research question gives a preview of the different parts and variables of the study meant to address the problem posed in the research question. 1 An excellent research question clarifies the research writing while facilitating understanding of the research topic, objective, scope, and limitations of the study. 5
On the other hand, a research hypothesis is an educated statement of an expected outcome. This statement is based on background research and current knowledge. 8 , 9 The research hypothesis makes a specific prediction about a new phenomenon 10 or a formal statement on the expected relationship between an independent variable and a dependent variable. 3 , 11 It provides a tentative answer to the research question to be tested or explored. 4
Hypotheses employ reasoning to predict a theory-based outcome. 10 These can also be developed from theories by focusing on components of theories that have not yet been observed. 10 The validity of hypotheses is often based on the testability of the prediction made in a reproducible experiment. 8
Conversely, hypotheses can also be rephrased as research questions. Several hypotheses based on existing theories and knowledge may be needed to answer a research question. Developing ethical research questions and hypotheses creates a research design that has logical relationships among variables. These relationships serve as a solid foundation for the conduct of the study. 4 , 11 Haphazardly constructed research questions can result in poorly formulated hypotheses and improper study designs, leading to unreliable results. Thus, the formulations of relevant research questions and verifiable hypotheses are crucial when beginning research. 12
CHARACTERISTICS OF GOOD RESEARCH QUESTIONS AND HYPOTHESES
Excellent research questions are specific and focused. These integrate collective data and observations to confirm or refute the subsequent hypotheses. Well-constructed hypotheses are based on previous reports and verify the research context. These are realistic, in-depth, sufficiently complex, and reproducible. More importantly, these hypotheses can be addressed and tested. 13
There are several characteristics of well-developed hypotheses. Good hypotheses are 1) empirically testable 7 , 10 , 11 , 13 ; 2) backed by preliminary evidence 9 ; 3) testable by ethical research 7 , 9 ; 4) based on original ideas 9 ; 5) have evidenced-based logical reasoning 10 ; and 6) can be predicted. 11 Good hypotheses can infer ethical and positive implications, indicating the presence of a relationship or effect relevant to the research theme. 7 , 11 These are initially developed from a general theory and branch into specific hypotheses by deductive reasoning. In the absence of a theory to base the hypotheses, inductive reasoning based on specific observations or findings form more general hypotheses. 10
TYPES OF RESEARCH QUESTIONS AND HYPOTHESES
Research questions and hypotheses are developed according to the type of research, which can be broadly classified into quantitative and qualitative research. We provide a summary of the types of research questions and hypotheses under quantitative and qualitative research categories in Table 1 .
Quantitative research questions | Quantitative research hypotheses |
---|---|
Descriptive research questions | Simple hypothesis |
Comparative research questions | Complex hypothesis |
Relationship research questions | Directional hypothesis |
Non-directional hypothesis | |
Associative hypothesis | |
Causal hypothesis | |
Null hypothesis | |
Alternative hypothesis | |
Working hypothesis | |
Statistical hypothesis | |
Logical hypothesis | |
Hypothesis-testing | |
Qualitative research questions | Qualitative research hypotheses |
Contextual research questions | Hypothesis-generating |
Descriptive research questions | |
Evaluation research questions | |
Explanatory research questions | |
Exploratory research questions | |
Generative research questions | |
Ideological research questions | |
Ethnographic research questions | |
Phenomenological research questions | |
Grounded theory questions | |
Qualitative case study questions |
Research questions in quantitative research
In quantitative research, research questions inquire about the relationships among variables being investigated and are usually framed at the start of the study. These are precise and typically linked to the subject population, dependent and independent variables, and research design. 1 Research questions may also attempt to describe the behavior of a population in relation to one or more variables, or describe the characteristics of variables to be measured ( descriptive research questions ). 1 , 5 , 14 These questions may also aim to discover differences between groups within the context of an outcome variable ( comparative research questions ), 1 , 5 , 14 or elucidate trends and interactions among variables ( relationship research questions ). 1 , 5 We provide examples of descriptive, comparative, and relationship research questions in quantitative research in Table 2 .
Quantitative research questions | |
---|---|
Descriptive research question | |
- Measures responses of subjects to variables | |
- Presents variables to measure, analyze, or assess | |
What is the proportion of resident doctors in the hospital who have mastered ultrasonography (response of subjects to a variable) as a diagnostic technique in their clinical training? | |
Comparative research question | |
- Clarifies difference between one group with outcome variable and another group without outcome variable | |
Is there a difference in the reduction of lung metastasis in osteosarcoma patients who received the vitamin D adjunctive therapy (group with outcome variable) compared with osteosarcoma patients who did not receive the vitamin D adjunctive therapy (group without outcome variable)? | |
- Compares the effects of variables | |
How does the vitamin D analogue 22-Oxacalcitriol (variable 1) mimic the antiproliferative activity of 1,25-Dihydroxyvitamin D (variable 2) in osteosarcoma cells? | |
Relationship research question | |
- Defines trends, association, relationships, or interactions between dependent variable and independent variable | |
Is there a relationship between the number of medical student suicide (dependent variable) and the level of medical student stress (independent variable) in Japan during the first wave of the COVID-19 pandemic? |
Hypotheses in quantitative research
In quantitative research, hypotheses predict the expected relationships among variables. 15 Relationships among variables that can be predicted include 1) between a single dependent variable and a single independent variable ( simple hypothesis ) or 2) between two or more independent and dependent variables ( complex hypothesis ). 4 , 11 Hypotheses may also specify the expected direction to be followed and imply an intellectual commitment to a particular outcome ( directional hypothesis ) 4 . On the other hand, hypotheses may not predict the exact direction and are used in the absence of a theory, or when findings contradict previous studies ( non-directional hypothesis ). 4 In addition, hypotheses can 1) define interdependency between variables ( associative hypothesis ), 4 2) propose an effect on the dependent variable from manipulation of the independent variable ( causal hypothesis ), 4 3) state a negative relationship between two variables ( null hypothesis ), 4 , 11 , 15 4) replace the working hypothesis if rejected ( alternative hypothesis ), 15 explain the relationship of phenomena to possibly generate a theory ( working hypothesis ), 11 5) involve quantifiable variables that can be tested statistically ( statistical hypothesis ), 11 6) or express a relationship whose interlinks can be verified logically ( logical hypothesis ). 11 We provide examples of simple, complex, directional, non-directional, associative, causal, null, alternative, working, statistical, and logical hypotheses in quantitative research, as well as the definition of quantitative hypothesis-testing research in Table 3 .
Quantitative research hypotheses | |
---|---|
Simple hypothesis | |
- Predicts relationship between single dependent variable and single independent variable | |
If the dose of the new medication (single independent variable) is high, blood pressure (single dependent variable) is lowered. | |
Complex hypothesis | |
- Foretells relationship between two or more independent and dependent variables | |
The higher the use of anticancer drugs, radiation therapy, and adjunctive agents (3 independent variables), the higher would be the survival rate (1 dependent variable). | |
Directional hypothesis | |
- Identifies study direction based on theory towards particular outcome to clarify relationship between variables | |
Privately funded research projects will have a larger international scope (study direction) than publicly funded research projects. | |
Non-directional hypothesis | |
- Nature of relationship between two variables or exact study direction is not identified | |
- Does not involve a theory | |
Women and men are different in terms of helpfulness. (Exact study direction is not identified) | |
Associative hypothesis | |
- Describes variable interdependency | |
- Change in one variable causes change in another variable | |
A larger number of people vaccinated against COVID-19 in the region (change in independent variable) will reduce the region’s incidence of COVID-19 infection (change in dependent variable). | |
Causal hypothesis | |
- An effect on dependent variable is predicted from manipulation of independent variable | |
A change into a high-fiber diet (independent variable) will reduce the blood sugar level (dependent variable) of the patient. | |
Null hypothesis | |
- A negative statement indicating no relationship or difference between 2 variables | |
There is no significant difference in the severity of pulmonary metastases between the new drug (variable 1) and the current drug (variable 2). | |
Alternative hypothesis | |
- Following a null hypothesis, an alternative hypothesis predicts a relationship between 2 study variables | |
The new drug (variable 1) is better on average in reducing the level of pain from pulmonary metastasis than the current drug (variable 2). | |
Working hypothesis | |
- A hypothesis that is initially accepted for further research to produce a feasible theory | |
Dairy cows fed with concentrates of different formulations will produce different amounts of milk. | |
Statistical hypothesis | |
- Assumption about the value of population parameter or relationship among several population characteristics | |
- Validity tested by a statistical experiment or analysis | |
The mean recovery rate from COVID-19 infection (value of population parameter) is not significantly different between population 1 and population 2. | |
There is a positive correlation between the level of stress at the workplace and the number of suicides (population characteristics) among working people in Japan. | |
Logical hypothesis | |
- Offers or proposes an explanation with limited or no extensive evidence | |
If healthcare workers provide more educational programs about contraception methods, the number of adolescent pregnancies will be less. | |
Hypothesis-testing (Quantitative hypothesis-testing research) | |
- Quantitative research uses deductive reasoning. | |
- This involves the formation of a hypothesis, collection of data in the investigation of the problem, analysis and use of the data from the investigation, and drawing of conclusions to validate or nullify the hypotheses. |
Research questions in qualitative research
Unlike research questions in quantitative research, research questions in qualitative research are usually continuously reviewed and reformulated. The central question and associated subquestions are stated more than the hypotheses. 15 The central question broadly explores a complex set of factors surrounding the central phenomenon, aiming to present the varied perspectives of participants. 15
There are varied goals for which qualitative research questions are developed. These questions can function in several ways, such as to 1) identify and describe existing conditions ( contextual research question s); 2) describe a phenomenon ( descriptive research questions ); 3) assess the effectiveness of existing methods, protocols, theories, or procedures ( evaluation research questions ); 4) examine a phenomenon or analyze the reasons or relationships between subjects or phenomena ( explanatory research questions ); or 5) focus on unknown aspects of a particular topic ( exploratory research questions ). 5 In addition, some qualitative research questions provide new ideas for the development of theories and actions ( generative research questions ) or advance specific ideologies of a position ( ideological research questions ). 1 Other qualitative research questions may build on a body of existing literature and become working guidelines ( ethnographic research questions ). Research questions may also be broadly stated without specific reference to the existing literature or a typology of questions ( phenomenological research questions ), may be directed towards generating a theory of some process ( grounded theory questions ), or may address a description of the case and the emerging themes ( qualitative case study questions ). 15 We provide examples of contextual, descriptive, evaluation, explanatory, exploratory, generative, ideological, ethnographic, phenomenological, grounded theory, and qualitative case study research questions in qualitative research in Table 4 , and the definition of qualitative hypothesis-generating research in Table 5 .
Qualitative research questions | |
---|---|
Contextual research question | |
- Ask the nature of what already exists | |
- Individuals or groups function to further clarify and understand the natural context of real-world problems | |
What are the experiences of nurses working night shifts in healthcare during the COVID-19 pandemic? (natural context of real-world problems) | |
Descriptive research question | |
- Aims to describe a phenomenon | |
What are the different forms of disrespect and abuse (phenomenon) experienced by Tanzanian women when giving birth in healthcare facilities? | |
Evaluation research question | |
- Examines the effectiveness of existing practice or accepted frameworks | |
How effective are decision aids (effectiveness of existing practice) in helping decide whether to give birth at home or in a healthcare facility? | |
Explanatory research question | |
- Clarifies a previously studied phenomenon and explains why it occurs | |
Why is there an increase in teenage pregnancy (phenomenon) in Tanzania? | |
Exploratory research question | |
- Explores areas that have not been fully investigated to have a deeper understanding of the research problem | |
What factors affect the mental health of medical students (areas that have not yet been fully investigated) during the COVID-19 pandemic? | |
Generative research question | |
- Develops an in-depth understanding of people’s behavior by asking ‘how would’ or ‘what if’ to identify problems and find solutions | |
How would the extensive research experience of the behavior of new staff impact the success of the novel drug initiative? | |
Ideological research question | |
- Aims to advance specific ideas or ideologies of a position | |
Are Japanese nurses who volunteer in remote African hospitals able to promote humanized care of patients (specific ideas or ideologies) in the areas of safe patient environment, respect of patient privacy, and provision of accurate information related to health and care? | |
Ethnographic research question | |
- Clarifies peoples’ nature, activities, their interactions, and the outcomes of their actions in specific settings | |
What are the demographic characteristics, rehabilitative treatments, community interactions, and disease outcomes (nature, activities, their interactions, and the outcomes) of people in China who are suffering from pneumoconiosis? | |
Phenomenological research question | |
- Knows more about the phenomena that have impacted an individual | |
What are the lived experiences of parents who have been living with and caring for children with a diagnosis of autism? (phenomena that have impacted an individual) | |
Grounded theory question | |
- Focuses on social processes asking about what happens and how people interact, or uncovering social relationships and behaviors of groups | |
What are the problems that pregnant adolescents face in terms of social and cultural norms (social processes), and how can these be addressed? | |
Qualitative case study question | |
- Assesses a phenomenon using different sources of data to answer “why” and “how” questions | |
- Considers how the phenomenon is influenced by its contextual situation. | |
How does quitting work and assuming the role of a full-time mother (phenomenon assessed) change the lives of women in Japan? |
Qualitative research hypotheses | |
---|---|
Hypothesis-generating (Qualitative hypothesis-generating research) | |
- Qualitative research uses inductive reasoning. | |
- This involves data collection from study participants or the literature regarding a phenomenon of interest, using the collected data to develop a formal hypothesis, and using the formal hypothesis as a framework for testing the hypothesis. | |
- Qualitative exploratory studies explore areas deeper, clarifying subjective experience and allowing formulation of a formal hypothesis potentially testable in a future quantitative approach. |
Qualitative studies usually pose at least one central research question and several subquestions starting with How or What . These research questions use exploratory verbs such as explore or describe . These also focus on one central phenomenon of interest, and may mention the participants and research site. 15
Hypotheses in qualitative research
Hypotheses in qualitative research are stated in the form of a clear statement concerning the problem to be investigated. Unlike in quantitative research where hypotheses are usually developed to be tested, qualitative research can lead to both hypothesis-testing and hypothesis-generating outcomes. 2 When studies require both quantitative and qualitative research questions, this suggests an integrative process between both research methods wherein a single mixed-methods research question can be developed. 1
FRAMEWORKS FOR DEVELOPING RESEARCH QUESTIONS AND HYPOTHESES
Research questions followed by hypotheses should be developed before the start of the study. 1 , 12 , 14 It is crucial to develop feasible research questions on a topic that is interesting to both the researcher and the scientific community. This can be achieved by a meticulous review of previous and current studies to establish a novel topic. Specific areas are subsequently focused on to generate ethical research questions. The relevance of the research questions is evaluated in terms of clarity of the resulting data, specificity of the methodology, objectivity of the outcome, depth of the research, and impact of the study. 1 , 5 These aspects constitute the FINER criteria (i.e., Feasible, Interesting, Novel, Ethical, and Relevant). 1 Clarity and effectiveness are achieved if research questions meet the FINER criteria. In addition to the FINER criteria, Ratan et al. described focus, complexity, novelty, feasibility, and measurability for evaluating the effectiveness of research questions. 14
The PICOT and PEO frameworks are also used when developing research questions. 1 The following elements are addressed in these frameworks, PICOT: P-population/patients/problem, I-intervention or indicator being studied, C-comparison group, O-outcome of interest, and T-timeframe of the study; PEO: P-population being studied, E-exposure to preexisting conditions, and O-outcome of interest. 1 Research questions are also considered good if these meet the “FINERMAPS” framework: Feasible, Interesting, Novel, Ethical, Relevant, Manageable, Appropriate, Potential value/publishable, and Systematic. 14
As we indicated earlier, research questions and hypotheses that are not carefully formulated result in unethical studies or poor outcomes. To illustrate this, we provide some examples of ambiguous research question and hypotheses that result in unclear and weak research objectives in quantitative research ( Table 6 ) 16 and qualitative research ( Table 7 ) 17 , and how to transform these ambiguous research question(s) and hypothesis(es) into clear and good statements.
Variables | Unclear and weak statement (Statement 1) | Clear and good statement (Statement 2) | Points to avoid |
---|---|---|---|
Research question | Which is more effective between smoke moxibustion and smokeless moxibustion? | “Moreover, regarding smoke moxibustion versus smokeless moxibustion, it remains unclear which is more effective, safe, and acceptable to pregnant women, and whether there is any difference in the amount of heat generated.” | 1) Vague and unfocused questions |
2) Closed questions simply answerable by yes or no | |||
3) Questions requiring a simple choice | |||
Hypothesis | The smoke moxibustion group will have higher cephalic presentation. | “Hypothesis 1. The smoke moxibustion stick group (SM group) and smokeless moxibustion stick group (-SLM group) will have higher rates of cephalic presentation after treatment than the control group. | 1) Unverifiable hypotheses |
Hypothesis 2. The SM group and SLM group will have higher rates of cephalic presentation at birth than the control group. | 2) Incompletely stated groups of comparison | ||
Hypothesis 3. There will be no significant differences in the well-being of the mother and child among the three groups in terms of the following outcomes: premature birth, premature rupture of membranes (PROM) at < 37 weeks, Apgar score < 7 at 5 min, umbilical cord blood pH < 7.1, admission to neonatal intensive care unit (NICU), and intrauterine fetal death.” | 3) Insufficiently described variables or outcomes | ||
Research objective | To determine which is more effective between smoke moxibustion and smokeless moxibustion. | “The specific aims of this pilot study were (a) to compare the effects of smoke moxibustion and smokeless moxibustion treatments with the control group as a possible supplement to ECV for converting breech presentation to cephalic presentation and increasing adherence to the newly obtained cephalic position, and (b) to assess the effects of these treatments on the well-being of the mother and child.” | 1) Poor understanding of the research question and hypotheses |
2) Insufficient description of population, variables, or study outcomes |
a These statements were composed for comparison and illustrative purposes only.
b These statements are direct quotes from Higashihara and Horiuchi. 16
Variables | Unclear and weak statement (Statement 1) | Clear and good statement (Statement 2) | Points to avoid |
---|---|---|---|
Research question | Does disrespect and abuse (D&A) occur in childbirth in Tanzania? | How does disrespect and abuse (D&A) occur and what are the types of physical and psychological abuses observed in midwives’ actual care during facility-based childbirth in urban Tanzania? | 1) Ambiguous or oversimplistic questions |
2) Questions unverifiable by data collection and analysis | |||
Hypothesis | Disrespect and abuse (D&A) occur in childbirth in Tanzania. | Hypothesis 1: Several types of physical and psychological abuse by midwives in actual care occur during facility-based childbirth in urban Tanzania. | 1) Statements simply expressing facts |
Hypothesis 2: Weak nursing and midwifery management contribute to the D&A of women during facility-based childbirth in urban Tanzania. | 2) Insufficiently described concepts or variables | ||
Research objective | To describe disrespect and abuse (D&A) in childbirth in Tanzania. | “This study aimed to describe from actual observations the respectful and disrespectful care received by women from midwives during their labor period in two hospitals in urban Tanzania.” | 1) Statements unrelated to the research question and hypotheses |
2) Unattainable or unexplorable objectives |
a This statement is a direct quote from Shimoda et al. 17
The other statements were composed for comparison and illustrative purposes only.
CONSTRUCTING RESEARCH QUESTIONS AND HYPOTHESES
To construct effective research questions and hypotheses, it is very important to 1) clarify the background and 2) identify the research problem at the outset of the research, within a specific timeframe. 9 Then, 3) review or conduct preliminary research to collect all available knowledge about the possible research questions by studying theories and previous studies. 18 Afterwards, 4) construct research questions to investigate the research problem. Identify variables to be accessed from the research questions 4 and make operational definitions of constructs from the research problem and questions. Thereafter, 5) construct specific deductive or inductive predictions in the form of hypotheses. 4 Finally, 6) state the study aims . This general flow for constructing effective research questions and hypotheses prior to conducting research is shown in Fig. 1 .
![Click on image to zoom An external file that holds a picture, illustration, etc.
Object name is jkms-37-e121-g001.jpg](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9039193/bin/jkms-37-e121-g001.jpg)
Research questions are used more frequently in qualitative research than objectives or hypotheses. 3 These questions seek to discover, understand, explore or describe experiences by asking “What” or “How.” The questions are open-ended to elicit a description rather than to relate variables or compare groups. The questions are continually reviewed, reformulated, and changed during the qualitative study. 3 Research questions are also used more frequently in survey projects than hypotheses in experiments in quantitative research to compare variables and their relationships.
Hypotheses are constructed based on the variables identified and as an if-then statement, following the template, ‘If a specific action is taken, then a certain outcome is expected.’ At this stage, some ideas regarding expectations from the research to be conducted must be drawn. 18 Then, the variables to be manipulated (independent) and influenced (dependent) are defined. 4 Thereafter, the hypothesis is stated and refined, and reproducible data tailored to the hypothesis are identified, collected, and analyzed. 4 The hypotheses must be testable and specific, 18 and should describe the variables and their relationships, the specific group being studied, and the predicted research outcome. 18 Hypotheses construction involves a testable proposition to be deduced from theory, and independent and dependent variables to be separated and measured separately. 3 Therefore, good hypotheses must be based on good research questions constructed at the start of a study or trial. 12
In summary, research questions are constructed after establishing the background of the study. Hypotheses are then developed based on the research questions. Thus, it is crucial to have excellent research questions to generate superior hypotheses. In turn, these would determine the research objectives and the design of the study, and ultimately, the outcome of the research. 12 Algorithms for building research questions and hypotheses are shown in Fig. 2 for quantitative research and in Fig. 3 for qualitative research.
![Click on image to zoom An external file that holds a picture, illustration, etc.
Object name is jkms-37-e121-g002.jpg](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9039193/bin/jkms-37-e121-g002.jpg)
EXAMPLES OF RESEARCH QUESTIONS FROM PUBLISHED ARTICLES
- EXAMPLE 1. Descriptive research question (quantitative research)
- - Presents research variables to be assessed (distinct phenotypes and subphenotypes)
- “BACKGROUND: Since COVID-19 was identified, its clinical and biological heterogeneity has been recognized. Identifying COVID-19 phenotypes might help guide basic, clinical, and translational research efforts.
- RESEARCH QUESTION: Does the clinical spectrum of patients with COVID-19 contain distinct phenotypes and subphenotypes? ” 19
- EXAMPLE 2. Relationship research question (quantitative research)
- - Shows interactions between dependent variable (static postural control) and independent variable (peripheral visual field loss)
- “Background: Integration of visual, vestibular, and proprioceptive sensations contributes to postural control. People with peripheral visual field loss have serious postural instability. However, the directional specificity of postural stability and sensory reweighting caused by gradual peripheral visual field loss remain unclear.
- Research question: What are the effects of peripheral visual field loss on static postural control ?” 20
- EXAMPLE 3. Comparative research question (quantitative research)
- - Clarifies the difference among groups with an outcome variable (patients enrolled in COMPERA with moderate PH or severe PH in COPD) and another group without the outcome variable (patients with idiopathic pulmonary arterial hypertension (IPAH))
- “BACKGROUND: Pulmonary hypertension (PH) in COPD is a poorly investigated clinical condition.
- RESEARCH QUESTION: Which factors determine the outcome of PH in COPD?
- STUDY DESIGN AND METHODS: We analyzed the characteristics and outcome of patients enrolled in the Comparative, Prospective Registry of Newly Initiated Therapies for Pulmonary Hypertension (COMPERA) with moderate or severe PH in COPD as defined during the 6th PH World Symposium who received medical therapy for PH and compared them with patients with idiopathic pulmonary arterial hypertension (IPAH) .” 21
- EXAMPLE 4. Exploratory research question (qualitative research)
- - Explores areas that have not been fully investigated (perspectives of families and children who receive care in clinic-based child obesity treatment) to have a deeper understanding of the research problem
- “Problem: Interventions for children with obesity lead to only modest improvements in BMI and long-term outcomes, and data are limited on the perspectives of families of children with obesity in clinic-based treatment. This scoping review seeks to answer the question: What is known about the perspectives of families and children who receive care in clinic-based child obesity treatment? This review aims to explore the scope of perspectives reported by families of children with obesity who have received individualized outpatient clinic-based obesity treatment.” 22
- EXAMPLE 5. Relationship research question (quantitative research)
- - Defines interactions between dependent variable (use of ankle strategies) and independent variable (changes in muscle tone)
- “Background: To maintain an upright standing posture against external disturbances, the human body mainly employs two types of postural control strategies: “ankle strategy” and “hip strategy.” While it has been reported that the magnitude of the disturbance alters the use of postural control strategies, it has not been elucidated how the level of muscle tone, one of the crucial parameters of bodily function, determines the use of each strategy. We have previously confirmed using forward dynamics simulations of human musculoskeletal models that an increased muscle tone promotes the use of ankle strategies. The objective of the present study was to experimentally evaluate a hypothesis: an increased muscle tone promotes the use of ankle strategies. Research question: Do changes in the muscle tone affect the use of ankle strategies ?” 23
EXAMPLES OF HYPOTHESES IN PUBLISHED ARTICLES
- EXAMPLE 1. Working hypothesis (quantitative research)
- - A hypothesis that is initially accepted for further research to produce a feasible theory
- “As fever may have benefit in shortening the duration of viral illness, it is plausible to hypothesize that the antipyretic efficacy of ibuprofen may be hindering the benefits of a fever response when taken during the early stages of COVID-19 illness .” 24
- “In conclusion, it is plausible to hypothesize that the antipyretic efficacy of ibuprofen may be hindering the benefits of a fever response . The difference in perceived safety of these agents in COVID-19 illness could be related to the more potent efficacy to reduce fever with ibuprofen compared to acetaminophen. Compelling data on the benefit of fever warrant further research and review to determine when to treat or withhold ibuprofen for early stage fever for COVID-19 and other related viral illnesses .” 24
- EXAMPLE 2. Exploratory hypothesis (qualitative research)
- - Explores particular areas deeper to clarify subjective experience and develop a formal hypothesis potentially testable in a future quantitative approach
- “We hypothesized that when thinking about a past experience of help-seeking, a self distancing prompt would cause increased help-seeking intentions and more favorable help-seeking outcome expectations .” 25
- “Conclusion
- Although a priori hypotheses were not supported, further research is warranted as results indicate the potential for using self-distancing approaches to increasing help-seeking among some people with depressive symptomatology.” 25
- EXAMPLE 3. Hypothesis-generating research to establish a framework for hypothesis testing (qualitative research)
- “We hypothesize that compassionate care is beneficial for patients (better outcomes), healthcare systems and payers (lower costs), and healthcare providers (lower burnout). ” 26
- Compassionomics is the branch of knowledge and scientific study of the effects of compassionate healthcare. Our main hypotheses are that compassionate healthcare is beneficial for (1) patients, by improving clinical outcomes, (2) healthcare systems and payers, by supporting financial sustainability, and (3) HCPs, by lowering burnout and promoting resilience and well-being. The purpose of this paper is to establish a scientific framework for testing the hypotheses above . If these hypotheses are confirmed through rigorous research, compassionomics will belong in the science of evidence-based medicine, with major implications for all healthcare domains.” 26
- EXAMPLE 4. Statistical hypothesis (quantitative research)
- - An assumption is made about the relationship among several population characteristics ( gender differences in sociodemographic and clinical characteristics of adults with ADHD ). Validity is tested by statistical experiment or analysis ( chi-square test, Students t-test, and logistic regression analysis)
- “Our research investigated gender differences in sociodemographic and clinical characteristics of adults with ADHD in a Japanese clinical sample. Due to unique Japanese cultural ideals and expectations of women's behavior that are in opposition to ADHD symptoms, we hypothesized that women with ADHD experience more difficulties and present more dysfunctions than men . We tested the following hypotheses: first, women with ADHD have more comorbidities than men with ADHD; second, women with ADHD experience more social hardships than men, such as having less full-time employment and being more likely to be divorced.” 27
- “Statistical Analysis
- ( text omitted ) Between-gender comparisons were made using the chi-squared test for categorical variables and Students t-test for continuous variables…( text omitted ). A logistic regression analysis was performed for employment status, marital status, and comorbidity to evaluate the independent effects of gender on these dependent variables.” 27
EXAMPLES OF HYPOTHESIS AS WRITTEN IN PUBLISHED ARTICLES IN RELATION TO OTHER PARTS
- EXAMPLE 1. Background, hypotheses, and aims are provided
- “Pregnant women need skilled care during pregnancy and childbirth, but that skilled care is often delayed in some countries …( text omitted ). The focused antenatal care (FANC) model of WHO recommends that nurses provide information or counseling to all pregnant women …( text omitted ). Job aids are visual support materials that provide the right kind of information using graphics and words in a simple and yet effective manner. When nurses are not highly trained or have many work details to attend to, these job aids can serve as a content reminder for the nurses and can be used for educating their patients (Jennings, Yebadokpo, Affo, & Agbogbe, 2010) ( text omitted ). Importantly, additional evidence is needed to confirm how job aids can further improve the quality of ANC counseling by health workers in maternal care …( text omitted )” 28
- “ This has led us to hypothesize that the quality of ANC counseling would be better if supported by job aids. Consequently, a better quality of ANC counseling is expected to produce higher levels of awareness concerning the danger signs of pregnancy and a more favorable impression of the caring behavior of nurses .” 28
- “This study aimed to examine the differences in the responses of pregnant women to a job aid-supported intervention during ANC visit in terms of 1) their understanding of the danger signs of pregnancy and 2) their impression of the caring behaviors of nurses to pregnant women in rural Tanzania.” 28
- EXAMPLE 2. Background, hypotheses, and aims are provided
- “We conducted a two-arm randomized controlled trial (RCT) to evaluate and compare changes in salivary cortisol and oxytocin levels of first-time pregnant women between experimental and control groups. The women in the experimental group touched and held an infant for 30 min (experimental intervention protocol), whereas those in the control group watched a DVD movie of an infant (control intervention protocol). The primary outcome was salivary cortisol level and the secondary outcome was salivary oxytocin level.” 29
- “ We hypothesize that at 30 min after touching and holding an infant, the salivary cortisol level will significantly decrease and the salivary oxytocin level will increase in the experimental group compared with the control group .” 29
- EXAMPLE 3. Background, aim, and hypothesis are provided
- “In countries where the maternal mortality ratio remains high, antenatal education to increase Birth Preparedness and Complication Readiness (BPCR) is considered one of the top priorities [1]. BPCR includes birth plans during the antenatal period, such as the birthplace, birth attendant, transportation, health facility for complications, expenses, and birth materials, as well as family coordination to achieve such birth plans. In Tanzania, although increasing, only about half of all pregnant women attend an antenatal clinic more than four times [4]. Moreover, the information provided during antenatal care (ANC) is insufficient. In the resource-poor settings, antenatal group education is a potential approach because of the limited time for individual counseling at antenatal clinics.” 30
- “This study aimed to evaluate an antenatal group education program among pregnant women and their families with respect to birth-preparedness and maternal and infant outcomes in rural villages of Tanzania.” 30
- “ The study hypothesis was if Tanzanian pregnant women and their families received a family-oriented antenatal group education, they would (1) have a higher level of BPCR, (2) attend antenatal clinic four or more times, (3) give birth in a health facility, (4) have less complications of women at birth, and (5) have less complications and deaths of infants than those who did not receive the education .” 30
Research questions and hypotheses are crucial components to any type of research, whether quantitative or qualitative. These questions should be developed at the very beginning of the study. Excellent research questions lead to superior hypotheses, which, like a compass, set the direction of research, and can often determine the successful conduct of the study. Many research studies have floundered because the development of research questions and subsequent hypotheses was not given the thought and meticulous attention needed. The development of research questions and hypotheses is an iterative process based on extensive knowledge of the literature and insightful grasp of the knowledge gap. Focused, concise, and specific research questions provide a strong foundation for constructing hypotheses which serve as formal predictions about the research outcomes. Research questions and hypotheses are crucial elements of research that should not be overlooked. They should be carefully thought of and constructed when planning research. This avoids unethical studies and poor outcomes by defining well-founded objectives that determine the design, course, and outcome of the study.
Disclosure: The authors have no potential conflicts of interest to disclose.
Author Contributions:
- Conceptualization: Barroga E, Matanguihan GJ.
- Methodology: Barroga E, Matanguihan GJ.
- Writing - original draft: Barroga E, Matanguihan GJ.
- Writing - review & editing: Barroga E, Matanguihan GJ.
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Chapter 3 RESEARCH AND METHODOLOGY
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Scope and Delimitations in Research
Delimitations are the boundaries that the researcher sets in a research study, deciding what to include and what to exclude. They help to narrow down the study and make it more manageable and relevant to the research goal.
Updated on October 19, 2022
![quantitative research locale example Scope and Delimitations in Research](https://images.prismic.io/aje-cms-production/753794f8-6c27-42e6-b081-af9ebc6fad63_Scope-and-Delimitations-in-Research.jpg?auto=compress,format&w=60)
All scientific research has boundaries, whether or not the authors clearly explain them. Your study's scope and delimitations are the sections where you define the broader parameters and boundaries of your research.
The scope details what your study will explore, such as the target population, extent, or study duration. Delimitations are factors and variables not included in the study.
Scope and delimitations are not methodological shortcomings; they're always under your control. Discussing these is essential because doing so shows that your project is manageable and scientifically sound.
This article covers:
- What's meant by “scope” and “delimitations”
- Why these are integral components of every study
- How and where to actually write about scope and delimitations in your manuscript
- Examples of scope and delimitations from published studies
What is the scope in a research paper?
Simply put, the scope is the domain of your research. It describes the extent to which the research question will be explored in your study.
Articulating your study's scope early on helps you make your research question focused and realistic.
It also helps decide what data you need to collect (and, therefore, what data collection tools you need to design). Getting this right is vital for both academic articles and funding applications.
What are delimitations in a research paper?
Delimitations are those factors or aspects of the research area that you'll exclude from your research. The scope and delimitations of the study are intimately linked.
Essentially, delimitations form a more detailed and narrowed-down formulation of the scope in terms of exclusion. The delimitations explain what was (intentionally) not considered within the given piece of research.
Scope and delimitations examples
Use the following examples provided by our expert PhD editors as a reference when coming up with your own scope and delimitations.
Scope example
Your research question is, “What is the impact of bullying on the mental health of adolescents?” This topic, on its own, doesn't say much about what's being investigated.
The scope, for example, could encompass:
- Variables: “bullying” (dependent variable), “mental health” (independent variable), and ways of defining or measuring them
- Bullying type: Both face-to-face and cyberbullying
- Target population: Adolescents aged 12–17
- Geographical coverage: France or only one specific town in France
Delimitations example
Look back at the previous example.
Exploring the adverse effects of bullying on adolescents' mental health is a preliminary delimitation. This one was chosen from among many possible research questions (e.g., the impact of bullying on suicide rates, or children or adults).
Delimiting factors could include:
- Research design : Mixed-methods research, including thematic analysis of semi-structured interviews and statistical analysis of a survey
- Timeframe : Data collection to run for 3 months
- Population size : 100 survey participants; 15 interviewees
- Recruitment of participants : Quota sampling (aiming for specific portions of men, women, ethnic minority students etc.)
We can see that every choice you make in planning and conducting your research inevitably excludes other possible options.
What's the difference between limitations and delimitations?
Delimitations and limitations are entirely different, although they often get mixed up. These are the main differences:
![quantitative research locale example quantitative research locale example](https://prismic-io.s3.amazonaws.com/aje-cms-production/scope-and-delimitations-in-research-chart1.png)
This chart explains the difference between delimitations and limitations. Delimitations are the boundaries of the study while the limitations are the characteristics of the research design or methodology.
Delimitations encompass the elements outside of the boundaries you've set and depends on your decision of what yo include and exclude. On the flip side, limitations are the elements outside of your control, such as:
- limited financial resources
- unplanned work or expenses
- unexpected events (for example, the COVID-19 pandemic)
- time constraints
- lack of technology/instruments
- unavailable evidence or previous research on the topic
Delimitations involve narrowing your study to make it more manageable and relevant to what you're trying to prove. Limitations influence the validity and reliability of your research findings. Limitations are seen as potential weaknesses in your research.
Example of the differences
To clarify these differences, go back to the limitations of the earlier example.
Limitations could comprise:
- Sample size : Not large enough to provide generalizable conclusions.
- Sampling approach : Non-probability sampling has increased bias risk. For instance, the researchers might not manage to capture the experiences of ethnic minority students.
- Methodological pitfalls : Research participants from an urban area (Paris) are likely to be more advantaged than students in rural areas. A study exploring the latter's experiences will probably yield very different findings.
Where do you write the scope and delimitations, and why?
It can be surprisingly empowering to realize you're restricted when conducting scholarly research. But this realization also makes writing up your research easier to grasp and makes it easier to see its limits and the expectations placed on it. Properly revealing this information serves your field and the greater scientific community.
Openly (but briefly) acknowledge the scope and delimitations of your study early on. The Abstract and Introduction sections are good places to set the parameters of your paper.
Next, discuss the scope and delimitations in greater detail in the Methods section. You'll need to do this to justify your methodological approach and data collection instruments, as well as analyses
At this point, spell out why these delimitations were set. What alternative options did you consider? Why did you reject alternatives? What could your study not address?
Let's say you're gathering data that can be derived from different but related experiments. You must convince the reader that the one you selected best suits your research question.
Finally, a solid paper will return to the scope and delimitations in the Findings or Discussion section. Doing so helps readers contextualize and interpret findings because the study's scope and methods influence the results.
For instance, agricultural field experiments carried out under irrigated conditions yield different results from experiments carried out without irrigation.
Being transparent about the scope and any outstanding issues increases your research's credibility and objectivity. It helps other researchers replicate your study and advance scientific understanding of the same topic (e.g., by adopting a different approach).
How do you write the scope and delimitations?
Define the scope and delimitations of your study before collecting data. This is critical. This step should be part of your research project planning.
Answering the following questions will help you address your scope and delimitations clearly and convincingly.
- What are your study's aims and objectives?
- Why did you carry out the study?
- What was the exact topic under investigation?
- Which factors and variables were included? And state why specific variables were omitted from the research scope.
- Who or what did the study explore? What was the target population?
- What was the study's location (geographical area) or setting (e.g., laboratory)?
- What was the timeframe within which you collected your data ?
- Consider a study exploring the differences between identical twins who were raised together versus identical twins who weren't. The data collection might span 5, 10, or more years.
- A study exploring a new immigration policy will cover the period since the policy came into effect and the present moment.
- How was the research conducted (research design)?
- Experimental research, qualitative, quantitative, or mixed-methods research, literature review, etc.
- What data collection tools and analysis techniques were used? e.g., If you chose quantitative methods, which statistical analysis techniques and software did you use?
- What did you find?
- What did you conclude?
Useful vocabulary for scope and delimitations
![quantitative research locale example quantitative research locale example](https://prismic-io.s3.amazonaws.com/aje-cms-production/scope-and-delimitations-in-research-chart2.png)
When explaining both the scope and delimitations, it's important to use the proper language to clearly state each.
For the scope , use the following language:
- This study focuses on/considers/investigates/covers the following:
- This study aims to . . . / Here, we aim to show . . . / In this study, we . . .
- The overall objective of the research is . . . / Our objective is to . . .
When stating the delimitations, use the following language:
- This [ . . . ] will not be the focus, for it has been frequently and exhaustively discusses in earlier studies.
- To review the [ . . . ] is a task that lies outside the scope of this study.
- The following [ . . . ] has been excluded from this study . . .
- This study does not provide a complete literature review of [ . . . ]. Instead, it draws on selected pertinent studies [ . . . ]
Analysis of a published scope
In one example, Simione and Gnagnarella (2020) compared the psychological and behavioral impact of COVID-19 on Italy's health workers and general population.
Here's a breakdown of the study's scope into smaller chunks and discussion of what works and why.
Also notable is that this study's delimitations include references to:
- Recruitment of participants: Convenience sampling
- Demographic characteristics of study participants: Age, sex, etc.
- Measurements methods: E.g., the death anxiety scale of the Existential Concerns Questionnaire (ECQ; van Bruggen et al., 2017) etc.
- Data analysis tool: The statistical software R
Analysis of published scope and delimitations
Scope of the study : Johnsson et al. (2019) explored the effect of in-hospital physiotherapy on postoperative physical capacity, physical activity, and lung function in patients who underwent lung cancer surgery.
The delimitations narrowed down the scope as follows:
Refine your scope, delimitations, and scientific English
English ability shouldn't limit how clear and impactful your research can be. Expert AJE editors are available to assess your science and polish your academic writing. See AJE services here .
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A Quick Guide to Quantitative Research in the Social Sciences
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Copyright Year: 2020
Last Update: 2021
Publisher: University of Wales Trinity Saint David
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Reviewed by Jennifer Taylor, Assistant Professor, Texas A&M University-Corpus Christi on 4/18/24
This resource is a quick guide to quantitative research in the social sciences and not a comprehensive resource. It provides a VERY general overview of quantitative research but offers a good starting place for students new to research. It... read more
Comprehensiveness rating: 4 see less
This resource is a quick guide to quantitative research in the social sciences and not a comprehensive resource. It provides a VERY general overview of quantitative research but offers a good starting place for students new to research. It offers links and references to additional resources that are more comprehensive in nature.
Content Accuracy rating: 4
The content is relatively accurate. The measurement scale section is very sparse. Not all types of research designs or statistical methods are included, but it is a guide, so details are meant to be limited.
Relevance/Longevity rating: 4
The examples were interesting and appropriate. The content is up to date and will be useful for several years.
Clarity rating: 5
The text was clearly written. Tables and figures are not referenced in the text, which would have been nice.
Consistency rating: 5
The framework is consistent across chapters with terminology clearly highlighted and defined.
Modularity rating: 5
The chapters are subdivided into section that can be divided and assigned as reading in a course. Most chapters are brief and concise, unless elaboration is necessary, such as with the data analysis chapter. Again, this is a guide and not a comprehensive text, so sections are shorter and don't always include every subtopic that may be considered.
Organization/Structure/Flow rating: 5
The guide is well organized. I appreciate that the topics are presented in a logical and clear manner. The topics are provided in an order consistent with traditional research methods.
Interface rating: 5
The interface was easy to use and navigate. The images were clear and easy to read.
Grammatical Errors rating: 5
I did not notice any grammatical errors.
Cultural Relevance rating: 5
The materials are not culturally insensitive or offensive in any way.
I teach a Marketing Research course to undergraduates. I would consider using some of the chapters or topics included, especially the overview of the research designs and the analysis of data section.
Reviewed by Tiffany Kindratt, Assistant Professor, University of Texas at Arlington on 3/9/24
The text provides a brief overview of quantitative research topics that is geared towards research in the fields of education, sociology, business, and nursing. The author acknowledges that the textbook is not a comprehensive resource but offers... read more
Comprehensiveness rating: 3 see less
The text provides a brief overview of quantitative research topics that is geared towards research in the fields of education, sociology, business, and nursing. The author acknowledges that the textbook is not a comprehensive resource but offers references to other resources that can be used to deepen the knowledge. The text does not include a glossary or index. The references in the figures for each chapter are not included in the reference section. It would be helpful to include those.
Overall, the text is accurate. For example, Figure 1 on page 6 provides a clear overview of the research process. It includes general definitions of primary and secondary research. It would be helpful to include more details to explain some of the examples before they are presented. For instance, the example on page 5 was unclear how it pertains to the literature review section.
In general, the text is relevant and up-to-date. The text includes many inferences of moving from qualitative to quantitative analysis. This was surprising to me as a quantitative researcher. The author mentions that moving from a qualitative to quantitative approach should only be done when needed. As a predominantly quantitative researcher, I would not advice those interested in transitioning to using a qualitative approach that qualitative research would enhance their research—not something that should only be done if you have to.
Clarity rating: 4
The text is written in a clear manner. It would be helpful to the reader if there was a description of the tables and figures in the text before they are presented.
Consistency rating: 4
The framework for each chapter and terminology used are consistent.
Modularity rating: 4
The text is clearly divided into sections within each chapter. Overall, the chapters are a similar brief length except for the chapter on data analysis, which is much more comprehensive than others.
Organization/Structure/Flow rating: 4
The topics in the text are presented in a clear and logical order. The order of the text follows the conventional research methodology in social sciences.
I did not encounter any interface issues when reviewing this text. All links worked and there were no distortions of the images or charts that may confuse the reader.
Grammatical Errors rating: 3
There are some grammatical/typographical errors throughout. Of note, for Section 5 in the table of contents. “The” should be capitalized to start the title. In the title for Table 3, the “t” in typical should be capitalized.
Cultural Relevance rating: 4
The examples are culturally relevant. The text is geared towards learners in the UK, but examples are relevant for use in other countries (i.e., United States). I did not see any examples that may be considered culturally insensitive or offensive in any way.
I teach a course on research methods in a Bachelor of Science in Public Health program. I would consider using some of the text, particularly in the analysis chapter to supplement the current textbook in the future.
Reviewed by Finn Bell, Assistant Professor, University of Michigan, Dearborn on 1/3/24
For it being a quick guide and only 26 pages, it is very comprehensive, but it does not include an index or glossary. read more
For it being a quick guide and only 26 pages, it is very comprehensive, but it does not include an index or glossary.
Content Accuracy rating: 5
As far as I can tell, the text is accurate, error-free and unbiased.
Relevance/Longevity rating: 5
This text is up-to-date, and given the content, unlikely to become obsolete any time soon.
The text is very clear and accessible.
The text is internally consistent.
Given how short the text is, it seems unnecessary to divide it into smaller readings, nonetheless, it is clearly labelled such that an instructor could do so.
The text is well-organized and brings readers through basic quantitative methods in a logical, clear fashion.
Easy to navigate. Only one table that is split between pages, but not in a way that is confusing.
There were no noticeable grammatical errors.
The examples in this book don't give enough information to rate this effectively.
This text is truly a very quick guide at only 26 double-spaced pages. Nonetheless, Davies packs a lot of information on the basics of quantitative research methods into this text, in an engaging way with many examples of the concepts presented. This guide is more of a brief how-to that takes readers as far as how to select statistical tests. While it would be impossible to fully learn quantitative research from such a short text, of course, this resource provides a great introduction, overview, and refresher for program evaluation courses.
Reviewed by Shari Fedorowicz, Adjunct Professor, Bridgewater State University on 12/16/22
The text is indeed a quick guide for utilizing quantitative research. Appropriate and effective examples and diagrams were used throughout the text. The author clearly differentiates between use of quantitative and qualitative research providing... read more
Comprehensiveness rating: 5 see less
The text is indeed a quick guide for utilizing quantitative research. Appropriate and effective examples and diagrams were used throughout the text. The author clearly differentiates between use of quantitative and qualitative research providing the reader with the ability to distinguish two terms that frequently get confused. In addition, links and outside resources are provided to deepen the understanding as an option for the reader. The use of these links, coupled with diagrams and examples make this text comprehensive.
The content is mostly accurate. Given that it is a quick guide, the author chose a good selection of which types of research designs to include. However, some are not provided. For example, correlational or cross-correlational research is omitted and is not discussed in Section 3, but is used as a statistical example in the last section.
Examples utilized were appropriate and associated with terms adding value to the learning. The tables that included differentiation between types of statistical tests along with a parametric/nonparametric table were useful and relevant.
The purpose to the text and how to use this guide book is stated clearly and is established up front. The author is also very clear regarding the skill level of the user. Adding to the clarity are the tables with terms, definitions, and examples to help the reader unpack the concepts. The content related to the terms was succinct, direct, and clear. Many times examples or figures were used to supplement the narrative.
The text is consistent throughout from contents to references. Within each section of the text, the introductory paragraph under each section provides a clear understanding regarding what will be discussed in each section. The layout is consistent for each section and easy to follow.
The contents are visible and address each section of the text. A total of seven sections, including a reference section, is in the contents. Each section is outlined by what will be discussed in the contents. In addition, within each section, a heading is provided to direct the reader to the subtopic under each section.
The text is well-organized and segues appropriately. I would have liked to have seen an introductory section giving a narrative overview of what is in each section. This would provide the reader with the ability to get a preliminary glimpse into each upcoming sections and topics that are covered.
The book was easy to navigate and well-organized. Examples are presented in one color, links in another and last, figures and tables. The visuals supplemented the reading and placed appropriately. This provides an opportunity for the reader to unpack the reading by use of visuals and examples.
No significant grammatical errors.
The text is not offensive or culturally insensitive. Examples were inclusive of various races, ethnicities, and backgrounds.
This quick guide is a beneficial text to assist in unpacking the learning related to quantitative statistics. I would use this book to complement my instruction and lessons, or use this book as a main text with supplemental statistical problems and formulas. References to statistical programs were appropriate and were useful. The text did exactly what was stated up front in that it is a direct guide to quantitative statistics. It is well-written and to the point with content areas easy to locate by topic.
Reviewed by Sarah Capello, Assistant Professor, Radford University on 1/18/22
The text claims to provide "quick and simple advice on quantitative aspects of research in social sciences," which it does. There is no index or glossary, although vocabulary words are bolded and defined throughout the text. read more
The text claims to provide "quick and simple advice on quantitative aspects of research in social sciences," which it does. There is no index or glossary, although vocabulary words are bolded and defined throughout the text.
The content is mostly accurate. I would have preferred a few nuances to be hashed out a bit further to avoid potential reader confusion or misunderstanding of the concepts presented.
The content is current; however, some of the references cited in the text are outdated. Newer editions of those texts exist.
The text is very accessible and readable for a variety of audiences. Key terms are well-defined.
There are no content discrepancies within the text. The author even uses similarly shaped graphics for recurring purposes throughout the text (e.g., arrow call outs for further reading, rectangle call outs for examples).
The content is chunked nicely by topics and sections. If it were used for a course, it would be easy to assign different sections of the text for homework, etc. without confusing the reader if the instructor chose to present the content in a different order.
The author follows the structure of the research process. The organization of the text is easy to follow and comprehend.
All of the supplementary images (e.g., tables and figures) were beneficial to the reader and enhanced the text.
There are no significant grammatical errors.
I did not find any culturally offensive or insensitive references in the text.
This text does the difficult job of introducing the complicated concepts and processes of quantitative research in a quick and easy reference guide fairly well. I would not depend solely on this text to teach students about quantitative research, but it could be a good jumping off point for those who have no prior knowledge on this subject or those who need a gentle introduction before diving in to more advanced and complex readings of quantitative research methods.
Reviewed by J. Marlie Henry, Adjunct Faculty, University of Saint Francis on 12/9/21
Considering the length of this guide, this does a good job of addressing major areas that typically need to be addressed. There is a contents section. The guide does seem to be organized accordingly with appropriate alignment and logical flow of... read more
Considering the length of this guide, this does a good job of addressing major areas that typically need to be addressed. There is a contents section. The guide does seem to be organized accordingly with appropriate alignment and logical flow of thought. There is no glossary but, for a guide of this length, a glossary does not seem like it would enhance the guide significantly.
The content is relatively accurate. Expanding the content a bit more or explaining that the methods and designs presented are not entirely inclusive would help. As there are different schools of thought regarding what should/should not be included in terms of these designs and methods, simply bringing attention to that and explaining a bit more would help.
Relevance/Longevity rating: 3
This content needs to be updated. Most of the sources cited are seven or more years old. Even more, it would be helpful to see more currently relevant examples. Some of the source authors such as Andy Field provide very interesting and dynamic instruction in general, but they have much more current information available.
The language used is clear and appropriate. Unnecessary jargon is not used. The intent is clear- to communicate simply in a straightforward manner.
The guide seems to be internally consistent in terms of terminology and framework. There do not seem to be issues in this area. Terminology is internally consistent.
For a guide of this length, the author structured this logically into sections. This guide could be adopted in whole or by section with limited modifications. Courses with fewer than seven modules could also logically group some of the sections.
This guide does present with logical organization. The topics presented are conceptually sequenced in a manner that helps learners build logically on prior conceptualization. This also provides a simple conceptual framework for instructors to guide learners through the process.
Interface rating: 4
The visuals themselves are simple, but they are clear and understandable without distracting the learner. The purpose is clear- that of learning rather than visuals for the sake of visuals. Likewise, navigation is clear and without issues beyond a broken link (the last source noted in the references).
This guide seems to be free of grammatical errors.
It would be interesting to see more cultural integration in a guide of this nature, but the guide is not culturally insensitive or offensive in any way. The language used seems to be consistent with APA's guidelines for unbiased language.
Reviewed by Heng Yu-Ku, Professor, University of Northern Colorado on 5/13/21
The text covers all areas and ideas appropriately and provides practical tables, charts, and examples throughout the text. I would suggest the author also provides a complete research proposal at the end of Section 3 (page 10) and a comprehensive... read more
The text covers all areas and ideas appropriately and provides practical tables, charts, and examples throughout the text. I would suggest the author also provides a complete research proposal at the end of Section 3 (page 10) and a comprehensive research study as an Appendix after section 7 (page 26) to help readers comprehend information better.
For the most part, the content is accurate and unbiased. However, the author only includes four types of research designs used on the social sciences that contain quantitative elements: 1. Mixed method, 2) Case study, 3) Quasi-experiment, and 3) Action research. I wonder why the correlational research is not included as another type of quantitative research design as it has been introduced and emphasized in section 6 by the author.
I believe the content is up-to-date and that necessary updates will be relatively easy and straightforward to implement.
The text is easy to read and provides adequate context for any technical terminology used. However, the author could provide more detailed information about estimating the minimum sample size but not just refer the readers to use the online sample calculators at a different website.
The text is internally consistent in terms of terminology and framework. The author provides the right amount of information with additional information or resources for the readers.
The text includes seven sections. Therefore, it is easier for the instructor to allocate or divide the content into different weeks of instruction within the course.
Yes, the topics in the text are presented in a logical and clear fashion. The author provides clear and precise terminologies, summarizes important content in Table or Figure forms, and offers examples in each section for readers to check their understanding.
The interface of the book is consistent and clear, and all the images and charts provided in the book are appropriate. However, I did encounter some navigation problems as a couple of links are not working or requires permission to access those (pages 10 and 27).
No grammatical errors were found.
No culturally incentive or offensive in its language and the examples provided were found.
As the book title stated, this book provides “A Quick Guide to Quantitative Research in Social Science. It offers easy-to-read information and introduces the readers to the research process, such as research questions, research paradigms, research process, research designs, research methods, data collection, data analysis, and data discussion. However, some links are not working or need permissions to access them (pages 10 and 27).
Reviewed by Hsiao-Chin Kuo, Assistant Professor, Northeastern Illinois University on 4/26/21, updated 4/28/21
As a quick guide, it covers basic concepts related to quantitative research. It starts with WHY quantitative research with regard to asking research questions and considering research paradigms, then provides an overview of research design and... read more
As a quick guide, it covers basic concepts related to quantitative research. It starts with WHY quantitative research with regard to asking research questions and considering research paradigms, then provides an overview of research design and process, discusses methods, data collection and analysis, and ends with writing a research report. It also identifies its target readers/users as those begins to explore quantitative research. It would be helpful to include more examples for readers/users who are new to quantitative research.
Its content is mostly accurate and no bias given its nature as a quick guide. Yet, it is also quite simplified, such as its explanations of mixed methods, case study, quasi-experimental research, and action research. It provides resources for extended reading, yet more recent works will be helpful.
The book is relevant given its nature as a quick guide. It would be helpful to provide more recent works in its resources for extended reading, such as the section for Survey Research (p. 12). It would also be helpful to include more information to introduce common tools and software for statistical analysis.
The book is written with clear and understandable language. Important terms and concepts are presented with plain explanations and examples. Figures and tables are also presented to support its clarity. For example, Table 4 (p. 20) gives an easy-to-follow overview of different statistical tests.
The framework is very consistent with key points, further explanations, examples, and resources for extended reading. The sample studies are presented following the layout of the content, such as research questions, design and methods, and analysis. These examples help reinforce readers' understanding of these common research elements.
The book is divided into seven chapters. Each chapter clearly discusses an aspect of quantitative research. It can be easily divided into modules for a class or for a theme in a research method class. Chapters are short and provides additional resources for extended reading.
The topics in the chapters are presented in a logical and clear structure. It is easy to follow to a degree. Though, it would be also helpful to include the chapter number and title in the header next to its page number.
The text is easy to navigate. Most of the figures and tables are displayed clearly. Yet, there are several sections with empty space that is a bit confusing in the beginning. Again, it can be helpful to include the chapter number/title next to its page number.
Grammatical Errors rating: 4
No major grammatical errors were found.
There are no cultural insensitivities noted.
Given the nature and purpose of this book, as a quick guide, it provides readers a quick reference for important concepts and terms related to quantitative research. Because this book is quite short (27 pages), it can be used as an overview/preview about quantitative research. Teacher's facilitation/input and extended readings will be needed for a deeper learning and discussion about aspects of quantitative research.
Reviewed by Yang Cheng, Assistant Professor, North Carolina State University on 1/6/21
It covers the most important topics such as research progress, resources, measurement, and analysis of the data. read more
It covers the most important topics such as research progress, resources, measurement, and analysis of the data.
The book accurately describes the types of research methods such as mixed-method, quasi-experiment, and case study. It talks about the research proposal and key differences between statistical analyses as well.
The book pinpointed the significance of running a quantitative research method and its relevance to the field of social science.
The book clearly tells us the differences between types of quantitative methods and the steps of running quantitative research for students.
The book is consistent in terms of terminologies such as research methods or types of statistical analysis.
It addresses the headlines and subheadlines very well and each subheading should be necessary for readers.
The book was organized very well to illustrate the topic of quantitative methods in the field of social science.
The pictures within the book could be further developed to describe the key concepts vividly.
The textbook contains no grammatical errors.
It is not culturally offensive in any way.
Overall, this is a simple and quick guide for this important topic. It should be valuable for undergraduate students who would like to learn more about research methods.
Reviewed by Pierre Lu, Associate Professor, University of Texas Rio Grande Valley on 11/20/20
As a quick guide to quantitative research in social sciences, the text covers most ideas and areas. read more
As a quick guide to quantitative research in social sciences, the text covers most ideas and areas.
Mostly accurate content.
As a quick guide, content is highly relevant.
Succinct and clear.
Internally, the text is consistent in terms of terminology used.
The text is easily and readily divisible into smaller sections that can be used as assignments.
I like that there are examples throughout the book.
Easy to read. No interface/ navigation problems.
No grammatical errors detected.
I am not aware of the culturally insensitive description. After all, this is a methodology book.
I think the book has potential to be adopted as a foundation for quantitative research courses, or as a review in the first weeks in advanced quantitative course.
Reviewed by Sarah Fischer, Assistant Professor, Marymount University on 7/31/20
It is meant to be an overview, but it incredibly condensed and spends almost no time on key elements of statistics (such as what makes research generalizable, or what leads to research NOT being generalizable). read more
It is meant to be an overview, but it incredibly condensed and spends almost no time on key elements of statistics (such as what makes research generalizable, or what leads to research NOT being generalizable).
Content Accuracy rating: 1
Contains VERY significant errors, such as saying that one can "accept" a hypothesis. (One of the key aspect of hypothesis testing is that one either rejects or fails to reject a hypothesis, but NEVER accepts a hypothesis.)
Very relevant to those experiencing the research process for the first time. However, it is written by someone working in the natural sciences but is a text for social sciences. This does not explain the errors, but does explain why sometimes the author assumes things about the readers ("hail from more subjectivist territory") that are likely not true.
Clarity rating: 3
Some statistical terminology not explained clearly (or accurately), although the author has made attempts to do both.
Very consistently laid out.
Chapters are very short yet also point readers to outside texts for additional information. Easy to follow.
Generally logically organized.
Easy to navigate, images clear. The additional sources included need to linked to.
Minor grammatical and usage errors throughout the text.
Makes efforts to be inclusive.
The idea of this book is strong--short guides like this are needed. However, this book would likely be strengthened by a revision to reduce inaccuracies and improve the definitions and technical explanations of statistical concepts. Since the book is specifically aimed at the social sciences, it would also improve the text to have more examples that are based in the social sciences (rather than the health sciences or the arts).
Reviewed by Michelle Page, Assistant Professor, Worcester State University on 5/30/20
This text is exactly intended to be what it says: A quick guide. A basic outline of quantitative research processes, akin to cliff notes. The content provides only the essentials of a research process and contains key terms. A student or new... read more
This text is exactly intended to be what it says: A quick guide. A basic outline of quantitative research processes, akin to cliff notes. The content provides only the essentials of a research process and contains key terms. A student or new researcher would not be able to use this as a stand alone guide for quantitative pursuits without having a supplemental text that explains the steps in the process more comprehensively. The introduction does provide this caveat.
Content Accuracy rating: 3
There are no biases or errors that could be distinguished; however, it’s simplicity in content, although accurate for an outline of process, may lack a conveyance of the deeper meanings behind the specific processes explained about qualitative research.
The content is outlined in traditional format to highlight quantitative considerations for formatting research foundational pieces. The resources/references used to point the reader to literature sources can be easily updated with future editions.
The jargon in the text is simple to follow and provides adequate context for its purpose. It is simplified for its intention as a guide which is appropriate.
Each section of the text follows a consistent flow. Explanation of the research content or concept is defined and then a connection to literature is provided to expand the readers understanding of the section’s content. Terminology is consistent with the qualitative process.
As an “outline” and guide, this text can be used to quickly identify the critical parts of the quantitative process. Although each section does not provide deeper content for meaningful use as a stand alone text, it’s utility would be excellent as a reference for a course and can be used as an content guide for specific research courses.
The text’s outline and content are aligned and are in a logical flow in terms of the research considerations for quantitative research.
The only issue that the format was not able to provide was linkable articles. These would have to be cut and pasted into a browser. Functional clickable links in a text are very successful at leading the reader to the supplemental material.
No grammatical errors were noted.
This is a very good outline “guide” to help a new or student researcher to demystify the quantitative process. A successful outline of any process helps to guide work in a logical and systematic way. I think this simple guide is a great adjunct to more substantial research context.
Table of Contents
- Section 1: What will this resource do for you?
- Section 2: Why are you thinking about numbers? A discussion of the research question and paradigms.
- Section 3: An overview of the Research Process and Research Designs
- Section 4: Quantitative Research Methods
- Section 5: the data obtained from quantitative research
- Section 6: Analysis of data
- Section 7: Discussing your Results
Ancillary Material
About the book.
This resource is intended as an easy-to-use guide for anyone who needs some quick and simple advice on quantitative aspects of research in social sciences, covering subjects such as education, sociology, business, nursing. If you area qualitative researcher who needs to venture into the world of numbers, or a student instructed to undertake a quantitative research project despite a hatred for maths, then this booklet should be a real help.
The booklet was amended in 2022 to take into account previous review comments.
About the Contributors
Christine Davies , Ph.D
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Research Methodologies
Quantitative research methodologies.
- Qualitative Research Methodologies
- Systematic Reviews
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Library Help
What is quantitative research.
Quantitative methodologies use statistics to analyze numerical data gathered by researchers to answer their research questions. Quantitative methods can be used to answer questions such as:
- What are the relationships between two or more variables?
- What factors are at play in an environment that might affect the behavior or development of the organisms in that environment?
Quantitative methods can also be used to test hypotheses by conducting quasi-experimental studies or designing experiments.
Independent and Dependent Variables
In quantitative research, a variable is something (an intervention technique, a pharmaceutical, a temperature, etc.) that changes. There are two kinds of variables: independent variables and dependent variables . In the simplest terms, the independent variable is whatever the researchers are using to attempt to make a change in their dependent variable.
Independent Variable(s) | Dependent Variable |
---|---|
A new cancer-treating drug being tested in different dosage strengths | The number of detectable cancer cells in a patient or cell sample |
Different genres of music* | Plant growth within a specific time frame |
* This is a real, repeatable experiment you can try on your plants.
Correlational
Researchers will compare two sets of numbers to try and identify a relationship (if any) between two things.
- Köse S., & Murat, M. (2021). Examination of the relationship between smartphone addiction and cyberchondria in adolescents. Archives of Psychiatric Nursing, 35(6): 563-570.
- Pilger et al. (2021). Spiritual well-being, religious/spiritual coping and quality of life among the elderly undergoing hemodialysis: a correlational study. Journal of Religion, Spirituality & Aging, 33(1): 2-15.
Descriptive
Researchers will attempt to quantify a variety of factors at play as they study a particular type of phenomenon or action. For example, researchers might use a descriptive methodology to understand the effects of climate change on the life cycle of a plant or animal.
- Lakshmi, E. (2021). Food consumption pattern and body mass index of adolescents: A descriptive study. International Journal of Nutrition, Pharmacology, Neurological Diseases, 11(4), 293–297.
- Lin, J., Singh, S., Sha, L., Tan, W., Lang, D., Gašević, D., & Chen, G. (2022). Is it a good move? Mining effective tutoring strategies from human–human tutorial dialogues. Future Generation Computer Systems, 127, 194–207.
Experimental
To understand the effects of a variable, researchers will design an experiment where they can control as many factors as possible. This can involve creating control and experimental groups. The experimental group will be exposed to the variable to study its effects. The control group provides data about what happens when the variable is absent. For example, in a study about online teaching, the control group might receive traditional face-to-face instruction while the experimental group would receive their instruction virtually.
- Jinzhang Jia, Yinuo Chen, Guangbo Che, Jinchao Zhu, Fengxiao Wang, & Peng Jia. (2021). Experimental study on the explosion characteristics of hydrogen-methane premixed gas in complex pipe networks. Scientific Reports, 11(1), 1–11.
- Sasaki, R. et al. (2021). Effects of cryotherapy applied at different temperatures on inflammatory pain during the acute phase of arthritis in rats. Physical Therapy, 101(2), 1–9.
Quasi-Experimental/Quasi-Comparative
Researchers will attempt to determine what (if any) effect a variable can have. These studies may have multiple independent variables (causes) and multiple dependent variables (effects), but this can complicate researchers' efforts to find out if A can cause B or if X, Y, and Z are also playing a role.
- Jafari, A., Alami, A., Charoghchian, E., Delshad Noghabi, A., & Nejatian, M. (2021). The impact of effective communication skills training on the status of marital burnout among married women. BMC Women’s Health, 21(1), 1-10.
- Phillips, S. W., Kim, D.-Y., Sobol, J. J., & Gayadeen, S. M. (2021). Total recall?: A quasi-experimental study of officer’s recollection in shoot - don’t shoot simulators. Police Practice and Research, 22(3), 1229–1240.
Surveys can be considered a quantitative methodology if the researchers require their respondents to choose from pre-determined responses.
- Harries et al. (2021). Effects of the COVID-19 pandemic on medical students: A multicenter quantitative study. BMC Medical Education, 21(14), 1-8.
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Example Research Context & Quantitative Data Set
- First Online: 15 May 2020
Cite this chapter
- Ray W. Cooksey 2
1433 Accesses
Nearly all the statistical procedures are illustrated with reference to data emerging from a single coherent research context, described in this chapter. As you read, the variables used in the illustrations will remain familiar to you. The research context has been constructed to resonate not only with readers from a business background, but also with readers from social science, psychological, educational and health-related backgrounds. The research context and database are entirely fictitious and were created so that specific relationships and comparisons could be illustrated. Most of the procedures to be illustrated are performed on variables from this database using SPSS , with periodic use of SYSTAT, NCSS, STATGRAPHICS or R , as appropriate, for specific analytical and illustrative purposes. For certain more sophisticated procedures (such as time series analysis and Rasch models) and procedures involving different research designs (such as repeated measures designs), we extend the QCI research context to encompass new design aspects and additional data for the illustrations and to demonstrate the use of more specialised computer software programs. Finally, in this chapter, we discuss a range of quantitative stories that could be pursued in this database using the procedures illustrated in this book.
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- What Is Quantitative Research? | Definition, Uses & Methods
What Is Quantitative Research? | Definition, Uses & Methods
Published on June 12, 2020 by Pritha Bhandari . Revised on June 22, 2023.
Quantitative research is the process of collecting and analyzing numerical data. It can be used to find patterns and averages, make predictions, test causal relationships, and generalize results to wider populations.
Quantitative research is the opposite of qualitative research , which involves collecting and analyzing non-numerical data (e.g., text, video, or audio).
Quantitative research is widely used in the natural and social sciences: biology, chemistry, psychology, economics, sociology, marketing, etc.
- What is the demographic makeup of Singapore in 2020?
- How has the average temperature changed globally over the last century?
- Does environmental pollution affect the prevalence of honey bees?
- Does working from home increase productivity for people with long commutes?
Table of contents
Quantitative research methods, quantitative data analysis, advantages of quantitative research, disadvantages of quantitative research, other interesting articles, frequently asked questions about quantitative research.
You can use quantitative research methods for descriptive, correlational or experimental research.
- In descriptive research , you simply seek an overall summary of your study variables.
- In correlational research , you investigate relationships between your study variables.
- In experimental research , you systematically examine whether there is a cause-and-effect relationship between variables.
Correlational and experimental research can both be used to formally test hypotheses , or predictions, using statistics. The results may be generalized to broader populations based on the sampling method used.
To collect quantitative data, you will often need to use operational definitions that translate abstract concepts (e.g., mood) into observable and quantifiable measures (e.g., self-ratings of feelings and energy levels).
Research method | How to use | Example |
---|---|---|
Control or manipulate an to measure its effect on a dependent variable. | To test whether an intervention can reduce procrastination in college students, you give equal-sized groups either a procrastination intervention or a comparable task. You compare self-ratings of procrastination behaviors between the groups after the intervention. | |
Ask questions of a group of people in-person, over-the-phone or online. | You distribute with rating scales to first-year international college students to investigate their experiences of culture shock. | |
(Systematic) observation | Identify a behavior or occurrence of interest and monitor it in its natural setting. | To study college classroom participation, you sit in on classes to observe them, counting and recording the prevalence of active and passive behaviors by students from different backgrounds. |
Secondary research | Collect data that has been gathered for other purposes e.g., national surveys or historical records. | To assess whether attitudes towards climate change have changed since the 1980s, you collect relevant questionnaire data from widely available . |
Note that quantitative research is at risk for certain research biases , including information bias , omitted variable bias , sampling bias , or selection bias . Be sure that you’re aware of potential biases as you collect and analyze your data to prevent them from impacting your work too much.
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Once data is collected, you may need to process it before it can be analyzed. For example, survey and test data may need to be transformed from words to numbers. Then, you can use statistical analysis to answer your research questions .
Descriptive statistics will give you a summary of your data and include measures of averages and variability. You can also use graphs, scatter plots and frequency tables to visualize your data and check for any trends or outliers.
Using inferential statistics , you can make predictions or generalizations based on your data. You can test your hypothesis or use your sample data to estimate the population parameter .
First, you use descriptive statistics to get a summary of the data. You find the mean (average) and the mode (most frequent rating) of procrastination of the two groups, and plot the data to see if there are any outliers.
You can also assess the reliability and validity of your data collection methods to indicate how consistently and accurately your methods actually measured what you wanted them to.
Quantitative research is often used to standardize data collection and generalize findings . Strengths of this approach include:
- Replication
Repeating the study is possible because of standardized data collection protocols and tangible definitions of abstract concepts.
- Direct comparisons of results
The study can be reproduced in other cultural settings, times or with different groups of participants. Results can be compared statistically.
- Large samples
Data from large samples can be processed and analyzed using reliable and consistent procedures through quantitative data analysis.
- Hypothesis testing
Using formalized and established hypothesis testing procedures means that you have to carefully consider and report your research variables, predictions, data collection and testing methods before coming to a conclusion.
Despite the benefits of quantitative research, it is sometimes inadequate in explaining complex research topics. Its limitations include:
- Superficiality
Using precise and restrictive operational definitions may inadequately represent complex concepts. For example, the concept of mood may be represented with just a number in quantitative research, but explained with elaboration in qualitative research.
- Narrow focus
Predetermined variables and measurement procedures can mean that you ignore other relevant observations.
- Structural bias
Despite standardized procedures, structural biases can still affect quantitative research. Missing data , imprecise measurements or inappropriate sampling methods are biases that can lead to the wrong conclusions.
- Lack of context
Quantitative research often uses unnatural settings like laboratories or fails to consider historical and cultural contexts that may affect data collection and results.
If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.
- Chi square goodness of fit test
- Degrees of freedom
- Null hypothesis
- Discourse analysis
- Control groups
- Mixed methods research
- Non-probability sampling
- Inclusion and exclusion criteria
Research bias
- Rosenthal effect
- Implicit bias
- Cognitive bias
- Selection bias
- Negativity bias
- Status quo bias
Quantitative research deals with numbers and statistics, while qualitative research deals with words and meanings.
Quantitative methods allow you to systematically measure variables and test hypotheses . Qualitative methods allow you to explore concepts and experiences in more detail.
In mixed methods research , you use both qualitative and quantitative data collection and analysis methods to answer your research question .
Data collection is the systematic process by which observations or measurements are gathered in research. It is used in many different contexts by academics, governments, businesses, and other organizations.
Operationalization means turning abstract conceptual ideas into measurable observations.
For example, the concept of social anxiety isn’t directly observable, but it can be operationally defined in terms of self-rating scores, behavioral avoidance of crowded places, or physical anxiety symptoms in social situations.
Before collecting data , it’s important to consider how you will operationalize the variables that you want to measure.
Reliability and validity are both about how well a method measures something:
- Reliability refers to the consistency of a measure (whether the results can be reproduced under the same conditions).
- Validity refers to the accuracy of a measure (whether the results really do represent what they are supposed to measure).
If you are doing experimental research, you also have to consider the internal and external validity of your experiment.
Hypothesis testing is a formal procedure for investigating our ideas about the world using statistics. It is used by scientists to test specific predictions, called hypotheses , by calculating how likely it is that a pattern or relationship between variables could have arisen by chance.
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What is Quantitative Research? Definition, Methods, Types, and Examples
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If you’re wondering what is quantitative research and whether this methodology works for your research study, you’re not alone. If you want a simple quantitative research definition , then it’s enough to say that this is a method undertaken by researchers based on their study requirements. However, to select the most appropriate research for their study type, researchers should know all the methods available.
Selecting the right research method depends on a few important criteria, such as the research question, study type, time, costs, data availability, and availability of respondents. There are two main types of research methods— quantitative research and qualitative research. The purpose of quantitative research is to validate or test a theory or hypothesis and that of qualitative research is to understand a subject or event or identify reasons for observed patterns.
Quantitative research methods are used to observe events that affect a particular group of individuals, which is the sample population. In this type of research, diverse numerical data are collected through various methods and then statistically analyzed to aggregate the data, compare them, or show relationships among the data. Quantitative research methods broadly include questionnaires, structured observations, and experiments.
Here are two quantitative research examples:
- Satisfaction surveys sent out by a company regarding their revamped customer service initiatives. Customers are asked to rate their experience on a rating scale of 1 (poor) to 5 (excellent).
- A school has introduced a new after-school program for children, and a few months after commencement, the school sends out feedback questionnaires to the parents of the enrolled children. Such questionnaires usually include close-ended questions that require either definite answers or a Yes/No option. This helps in a quick, overall assessment of the program’s outreach and success.
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Table of Contents
What is quantitative research ? 1,2
![quantitative research locale example](https://blog.researcher.life/wp-content/uploads/2023/03/MicrosoftTeams-image-9-1-136x300.png)
The steps shown in the figure can be grouped into the following broad steps:
- Theory : Define the problem area or area of interest and create a research question.
- Hypothesis : Develop a hypothesis based on the research question. This hypothesis will be tested in the remaining steps.
- Research design : In this step, the most appropriate quantitative research design will be selected, including deciding on the sample size, selecting respondents, identifying research sites, if any, etc.
- Data collection : This process could be extensive based on your research objective and sample size.
- Data analysis : Statistical analysis is used to analyze the data collected. The results from the analysis help in either supporting or rejecting your hypothesis.
- Present results : Based on the data analysis, conclusions are drawn, and results are presented as accurately as possible.
Quantitative research characteristics 4
- Large sample size : This ensures reliability because this sample represents the target population or market. Due to the large sample size, the outcomes can be generalized to the entire population as well, making this one of the important characteristics of quantitative research .
- Structured data and measurable variables: The data are numeric and can be analyzed easily. Quantitative research involves the use of measurable variables such as age, salary range, highest education, etc.
- Easy-to-use data collection methods : The methods include experiments, controlled observations, and questionnaires and surveys with a rating scale or close-ended questions, which require simple and to-the-point answers; are not bound by geographical regions; and are easy to administer.
- Data analysis : Structured and accurate statistical analysis methods using software applications such as Excel, SPSS, R. The analysis is fast, accurate, and less effort intensive.
- Reliable : The respondents answer close-ended questions, their responses are direct without ambiguity and yield numeric outcomes, which are therefore highly reliable.
- Reusable outcomes : This is one of the key characteristics – outcomes of one research can be used and replicated in other research as well and is not exclusive to only one study.
Quantitative research methods 5
Quantitative research methods are classified into two types—primary and secondary.
Primary quantitative research method:
In this type of quantitative research , data are directly collected by the researchers using the following methods.
– Survey research : Surveys are the easiest and most commonly used quantitative research method . They are of two types— cross-sectional and longitudinal.
->Cross-sectional surveys are specifically conducted on a target population for a specified period, that is, these surveys have a specific starting and ending time and researchers study the events during this period to arrive at conclusions. The main purpose of these surveys is to describe and assess the characteristics of a population. There is one independent variable in this study, which is a common factor applicable to all participants in the population, for example, living in a specific city, diagnosed with a specific disease, of a certain age group, etc. An example of a cross-sectional survey is a study to understand why individuals residing in houses built before 1979 in the US are more susceptible to lead contamination.
->Longitudinal surveys are conducted at different time durations. These surveys involve observing the interactions among different variables in the target population, exposing them to various causal factors, and understanding their effects across a longer period. These studies are helpful to analyze a problem in the long term. An example of a longitudinal study is the study of the relationship between smoking and lung cancer over a long period.
– Descriptive research : Explains the current status of an identified and measurable variable. Unlike other types of quantitative research , a hypothesis is not needed at the beginning of the study and can be developed even after data collection. This type of quantitative research describes the characteristics of a problem and answers the what, when, where of a problem. However, it doesn’t answer the why of the problem and doesn’t explore cause-and-effect relationships between variables. Data from this research could be used as preliminary data for another study. Example: A researcher undertakes a study to examine the growth strategy of a company. This sample data can be used by other companies to determine their own growth strategy.
![quantitative research locale example](https://blog.researcher.life/wp-content/uploads/2023/03/MicrosoftTeams-image-10-300x200.jpg)
– Correlational research : This quantitative research method is used to establish a relationship between two variables using statistical analysis and analyze how one affects the other. The research is non-experimental because the researcher doesn’t control or manipulate any of the variables. At least two separate sample groups are needed for this research. Example: Researchers studying a correlation between regular exercise and diabetes.
– Causal-comparative research : This type of quantitative research examines the cause-effect relationships in retrospect between a dependent and independent variable and determines the causes of the already existing differences between groups of people. This is not a true experiment because it doesn’t assign participants to groups randomly. Example: To study the wage differences between men and women in the same role. For this, already existing wage information is analyzed to understand the relationship.
– Experimental research : This quantitative research method uses true experiments or scientific methods for determining a cause-effect relation between variables. It involves testing a hypothesis through experiments, in which one or more independent variables are manipulated and then their effect on dependent variables are studied. Example: A researcher studies the importance of a drug in treating a disease by administering the drug in few patients and not administering in a few.
The following data collection methods are commonly used in primary quantitative research :
- Sampling : The most common type is probability sampling, in which a sample is chosen from a larger population using some form of random selection, that is, every member of the population has an equal chance of being selected. The different types of probability sampling are—simple random, systematic, stratified, and cluster sampling.
- Interviews : These are commonly telephonic or face-to-face.
- Observations : Structured observations are most commonly used in quantitative research . In this method, researchers make observations about specific behaviors of individuals in a structured setting.
- Document review : Reviewing existing research or documents to collect evidence for supporting the quantitative research .
- Surveys and questionnaires : Surveys can be administered both online and offline depending on the requirement and sample size.
The data collected can be analyzed in several ways in quantitative research , as listed below:
- Cross-tabulation —Uses a tabular format to draw inferences among collected data
- MaxDiff analysis —Gauges the preferences of the respondents
- TURF analysis —Total Unduplicated Reach and Frequency Analysis; helps in determining the market strategy for a business
- Gap analysis —Identify gaps in attaining the desired results
- SWOT analysis —Helps identify strengths, weaknesses, opportunities, and threats of a product, service, or organization
- Text analysis —Used for interpreting unstructured data
Secondary quantitative research methods :
This method involves conducting research using already existing or secondary data. This method is less effort intensive and requires lesser time. However, researchers should verify the authenticity and recency of the sources being used and ensure their accuracy.
The main sources of secondary data are:
- The Internet
- Government and non-government sources
- Public libraries
- Educational institutions
- Commercial information sources such as newspapers, journals, radio, TV
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When to use quantitative research 6
Here are some simple ways to decide when to use quantitative research . Use quantitative research to:
- recommend a final course of action
- find whether a consensus exists regarding a particular subject
- generalize results to a larger population
- determine a cause-and-effect relationship between variables
- describe characteristics of specific groups of people
- test hypotheses and examine specific relationships
- identify and establish size of market segments
A research case study to understand when to use quantitative research 7
Context: A study was undertaken to evaluate a major innovation in a hospital’s design, in terms of workforce implications and impact on patient and staff experiences of all single-room hospital accommodations. The researchers undertook a mixed methods approach to answer their research questions. Here, we focus on the quantitative research aspect.
Research questions : What are the advantages and disadvantages for the staff as a result of the hospital’s move to the new design with all single-room accommodations? Did the move affect staff experience and well-being and improve their ability to deliver high-quality care?
Method: The researchers obtained quantitative data from three sources:
- Staff activity (task time distribution): Each staff member was shadowed by a researcher who observed each task undertaken by the staff, and logged the time spent on each activity.
- Staff travel distances : The staff were requested to wear pedometers, which recorded the distances covered.
- Staff experience surveys : Staff were surveyed before and after the move to the new hospital design.
Results of quantitative research : The following observations were made based on quantitative data analysis:
- The move to the new design did not result in a significant change in the proportion of time spent on different activities.
- Staff activity events observed per session were higher after the move, and direct care and professional communication events per hour decreased significantly, suggesting fewer interruptions and less fragmented care.
- A significant increase in medication tasks among the recorded events suggests that medication administration was integrated into patient care activities.
- Travel distances increased for all staff, with highest increases for staff in the older people’s ward and surgical wards.
- Ratings for staff toilet facilities, locker facilities, and space at staff bases were higher but those for social interaction and natural light were lower.
Advantages of quantitative research 1,2
When choosing the right research methodology, also consider the advantages of quantitative research and how it can impact your study.
- Quantitative research methods are more scientific and rational. They use quantifiable data leading to objectivity in the results and avoid any chances of ambiguity.
- This type of research uses numeric data so analysis is relatively easier .
- In most cases, a hypothesis is already developed and quantitative research helps in testing and validatin g these constructed theories based on which researchers can make an informed decision about accepting or rejecting their theory.
- The use of statistical analysis software ensures quick analysis of large volumes of data and is less effort intensive.
- Higher levels of control can be applied to the research so the chances of bias can be reduced.
- Quantitative research is based on measured value s, facts, and verifiable information so it can be easily checked or replicated by other researchers leading to continuity in scientific research.
Disadvantages of quantitative research 1,2
Quantitative research may also be limiting; take a look at the disadvantages of quantitative research.
- Experiments are conducted in controlled settings instead of natural settings and it is possible for researchers to either intentionally or unintentionally manipulate the experiment settings to suit the results they desire.
- Participants must necessarily give objective answers (either one- or two-word, or yes or no answers) and the reasons for their selection or the context are not considered.
- Inadequate knowledge of statistical analysis methods may affect the results and their interpretation.
- Although statistical analysis indicates the trends or patterns among variables, the reasons for these observed patterns cannot be interpreted and the research may not give a complete picture.
- Large sample sizes are needed for more accurate and generalizable analysis .
- Quantitative research cannot be used to address complex issues.
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Frequently asked questions on quantitative research
Q: What is the difference between quantitative research and qualitative research? 1
A: The following table lists the key differences between quantitative research and qualitative research, some of which may have been mentioned earlier in the article.
Purpose and design | ||
Research question | ||
Sample size | Large | Small |
Data | ||
Data collection method | Experiments, controlled observations, questionnaires and surveys with a rating scale or close-ended questions. The methods can be experimental, quasi-experimental, descriptive, or correlational. | Semi-structured interviews/surveys with open-ended questions, document study/literature reviews, focus groups, case study research, ethnography |
Data analysis |
Q: What is the difference between reliability and validity? 8,9
A: The term reliability refers to the consistency of a research study. For instance, if a food-measuring weighing scale gives different readings every time the same quantity of food is measured then that weighing scale is not reliable. If the findings in a research study are consistent every time a measurement is made, then the study is considered reliable. However, it is usually unlikely to obtain the exact same results every time because some contributing variables may change. In such cases, a correlation coefficient is used to assess the degree of reliability. A strong positive correlation between the results indicates reliability.
Validity can be defined as the degree to which a tool actually measures what it claims to measure. It helps confirm the credibility of your research and suggests that the results may be generalizable. In other words, it measures the accuracy of the research.
The following table gives the key differences between reliability and validity.
Importance | Refers to the consistency of a measure | Refers to the accuracy of a measure |
Ease of achieving | Easier, yields results faster | Involves more analysis, more difficult to achieve |
Assessment method | By examining the consistency of outcomes over time, between various observers, and within the test | By comparing the accuracy of the results with accepted theories and other measurements of the same idea |
Relationship | Unreliable measurements typically cannot be valid | Valid measurements are also reliable |
Types | Test-retest reliability, internal consistency, inter-rater reliability | Content validity, criterion validity, face validity, construct validity |
Q: What is mixed methods research? 10
![quantitative research locale example](https://blog.researcher.life/wp-content/uploads/2023/03/q3.png)
A: A mixed methods approach combines the characteristics of both quantitative research and qualitative research in the same study. This method allows researchers to validate their findings, verify if the results observed using both methods are complementary, and explain any unexpected results obtained from one method by using the other method. A mixed methods research design is useful in case of research questions that cannot be answered by either quantitative research or qualitative research alone. However, this method could be more effort- and cost-intensive because of the requirement of more resources. The figure 3 shows some basic mixed methods research designs that could be used.
Thus, quantitative research is the appropriate method for testing your hypotheses and can be used either alone or in combination with qualitative research per your study requirements. We hope this article has provided an insight into the various facets of quantitative research , including its different characteristics, advantages, and disadvantages, and a few tips to quickly understand when to use this research method.
References
- Qualitative vs quantitative research: Differences, examples, & methods. Simply Psychology. Accessed Feb 28, 2023. https://simplypsychology.org/qualitative-quantitative.html#Quantitative-Research
- Your ultimate guide to quantitative research. Qualtrics. Accessed February 28, 2023. https://www.qualtrics.com/uk/experience-management/research/quantitative-research/
- The steps of quantitative research. Revise Sociology. Accessed March 1, 2023. https://revisesociology.com/2017/11/26/the-steps-of-quantitative-research/
- What are the characteristics of quantitative research? Marketing91. Accessed March 1, 2023. https://www.marketing91.com/characteristics-of-quantitative-research/
- Quantitative research: Types, characteristics, methods, & examples. ProProfs Survey Maker. Accessed February 28, 2023. https://www.proprofssurvey.com/blog/quantitative-research/#Characteristics_of_Quantitative_Research
- Qualitative research isn’t as scientific as quantitative methods. Kmusial blog. Accessed March 5, 2023. https://kmusial.wordpress.com/2011/11/25/qualitative-research-isnt-as-scientific-as-quantitative-methods/
- Maben J, Griffiths P, Penfold C, et al. Evaluating a major innovation in hospital design: workforce implications and impact on patient and staff experiences of all single room hospital accommodation. Southampton (UK): NIHR Journals Library; 2015 Feb. (Health Services and Delivery Research, No. 3.3.) Chapter 5, Case study quantitative data findings. Accessed March 6, 2023. https://www.ncbi.nlm.nih.gov/books/NBK274429/
- McLeod, S. A. (2007). What is reliability? Simply Psychology. www.simplypsychology.org/reliability.html
- Reliability vs validity: Differences & examples. Accessed March 5, 2023. https://statisticsbyjim.com/basics/reliability-vs-validity/
- Mixed methods research. Community Engagement Program. Harvard Catalyst. Accessed February 28, 2023. https://catalyst.harvard.edu/community-engagement/mmr
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Qualitative vs. Quantitative Data: 7 Key Differences
Qualitative data is information you can describe with words rather than numbers.
Quantitative data is information represented in a measurable way using numbers.
One type of data isn’t better than the other.
To conduct thorough research, you need both. But knowing the difference between them is important if you want to harness the full power of both qualitative and quantitative data.
In this post, we’ll explore seven key differences between these two types of data.
#1. The Type of Data
The single biggest difference between quantitative and qualitative data is that one deals with numbers, and the other deals with concepts and ideas.
The words “qualitative” and “quantitative” are really similar, which can make it hard to keep track of which one is which. I like to think of them this way:
- Quantitative = quantity = numbers-related data
- Qualitative = quality = descriptive data
Qualitative data—the descriptive one—usually involves written or spoken words, images, or even objects. It’s collected in all sorts of ways: video recordings, interviews, open-ended survey responses, and field notes, for example.
I like how researcher James W. Crick defines qualitative research in a 2021 issue of the Journal of Strategic Marketing : “Qualitative research is designed to generate in-depth and subjective findings to build theory.”
In other words, qualitative research helps you learn more about a topic—usually from a primary, or firsthand, source—so you can form ideas about what it means. This type of data is often rich in detail, and its interpretation can vary depending on who’s analyzing it.
Here’s what I mean: if you ask five different people to observe how 60 kittens behave when presented with a hamster wheel, you’ll get five different versions of the same event.
Quantitative data, on the other hand, is all about numbers and statistics. There’s no wiggle room when it comes to interpretation. In our kitten scenario, quantitative data might show us that of the 60 kittens presented with a hamster wheel, 40 pawed at it, 5 jumped inside and started spinning, and 15 ignored it completely.
There’s no ifs, ands, or buts about the numbers. They just are.
#2. When to Use Each Type of Data
You should use both quantitative and quantitative data to make decisions for your business.
Quantitative data helps you get to the what . Qualitative data unearths the why .
Quantitative data collects surface information, like numbers. Qualitative data dives deep beneath these same numbers and fleshes out the nuances there.
Research projects can often benefit from both types of data, which is why you’ll see the term “mixed-method” research in peer-reviewed journals. The term “mixed-method” refers to using both quantitative and qualitative methods in a study.
So, maybe you’re diving into original research. Or maybe you’re looking at other peoples’ studies to make an important business decision. In either case, you can use both quantitative and qualitative data to guide you.
Imagine you want to start a company that makes hamster wheels for cats. You run that kitten experiment, only to learn that most kittens aren’t all that interested in the hamster wheel. That’s what your quantitative data seems to say. Of the 60 kittens who participated in the study, only 5 hopped into the wheel.
But 40 of the kittens pawed at the wheel. According to your quantitative data, these 40 kittens touched the wheel but did not get inside.
This is where your qualitative data comes into play. Why did these 40 kittens touch the wheel but stop exploring it? You turn to the researchers’ observations. Since there were five different researchers, you have five sets of detailed notes to study.
From these observations, you learn that many of the kittens seemed frightened when the wheel moved after they pawed it. They grew suspicious of the structure, meowing and circling it, agitated.
One researcher noted that the kittens seemed desperate to enjoy the wheel, but they didn’t seem to feel it was safe.
So your idea isn’t a flop, exactly.
It just needs tweaking.
According to your quantitative data, 75% of the kittens studied either touched or actively participated in the hamster wheel. Your qualitative data suggests more kittens would have jumped into the wheel if it hadn’t moved so easily when they pawed at it.
You decide to make your kitten wheel sturdier and try the whole test again with a new set of kittens. Hopefully, this time a higher percentage of your feline participants will hop in and enjoy the fun.
This is a very simplistic and fictional example of how a mixed-method approach can help you make important choices for your business.
#3. Data You Have Access To
When you can swing it, you should look at both qualitative and quantitative data before you make any big decisions.
But this is where we come to another big difference between quantitative vs. qualitative data: it’s a lot easier to source qualitative data than quantitative data.
Why? Because it’s easy to run a survey, host a focus group, or conduct a round of interviews. All you have to do is hop on SurveyMonkey or Zoom and you’re on your way to gathering original qualitative data.
And yes, you can get some quantitative data here. If you run a survey and 45 customers respond, you can collect demographic data and yes/no answers for that pool of 45 respondents.
But this is a relatively small sample size. (More on why this matters in a moment.)
To tell you anything meaningful, quantitative data must achieve statistical significance.
If it’s been a while since your college statistics class, here’s a refresh: statistical significance is a measuring stick. It tells you whether the results you get are due to a specific cause or if they can be attributed to random chance.
To achieve statistical significance in a study, you have to be really careful to set the study up the right way and with a meaningful sample size.
This doesn’t mean it’s impossible to get quantitative data. But unless you have someone on your team who knows all about null hypotheses and p-values and statistical analysis, you might need to outsource quantitative research.
Plenty of businesses do this, but it’s pricey.
When you’re just starting out or you’re strapped for cash, qualitative data can get you valuable information—quickly and without gouging your wallet.
#4. Big vs. Small Sample Size
Another reason qualitative data is more accessible? It requires a smaller sample size to achieve meaningful results.
Even one person’s perspective brings value to a research project—ever heard of a case study?
The sweet spot depends on the purpose of the study, but for qualitative market research, somewhere between 10-40 respondents is a good number.
Any more than that and you risk reaching saturation. That’s when you keep getting results that echo each other and add nothing new to the research.
Quantitative data needs enough respondents to reach statistical significance without veering into saturation territory.
The ideal sample size number is usually higher than it is for qualitative data. But as with qualitative data, there’s no single, magic number. It all depends on statistical values like confidence level, population size, and margin of error.
Because it often requires a larger sample size, quantitative research can be more difficult for the average person to do on their own.
#5. Methods of Analysis
Running a study is just the first part of conducting qualitative and quantitative research.
After you’ve collected data, you have to study it. Find themes, patterns, consistencies, inconsistencies. Interpret and organize the numbers or survey responses or interview recordings. Tidy it all up into something you can draw conclusions from and apply to various situations.
This is called data analysis, and it’s done in completely different ways for qualitative vs. quantitative data.
For qualitative data, analysis includes:
- Data prep: Make all your qualitative data easy to access and read. This could mean organizing survey results by date, or transcribing interviews, or putting photographs into a slideshow format.
- Coding: No, not that kind. Think color coding, like you did for your notes in school. Assign colors or codes to specific attributes that make sense for your study—green for positive emotions, for instance, and red for angry emotions. Then code each of your responses.
- Thematic analysis: Organize your codes into themes and sub-themes, looking for the meaning—and relationships—within each one.
- Content analysis: Quantify the number of times certain words or concepts appear in your data. If this sounds suspiciously like quantitative research to you, it is. Sort of. It’s looking at qualitative data with a quantitative eye to identify any recurring themes or patterns.
- Narrative analysis: Look for similar stories and experiences and group them together. Study them and draw inferences from what they say.
- Interpret and document: As you organize and analyze your qualitative data, decide what the findings mean for you and your project.
You can often do qualitative data analysis manually or with tools like NVivo and ATLAS.ti. These tools help you organize, code, and analyze your subjective qualitative data.
Quantitative data analysis is a lot less subjective. Here’s how it generally goes:
- Data cleaning: Remove all inconsistencies and inaccuracies from your data. Check for duplicates, incorrect formatting (mistakenly writing a 1.00 value as 10.1, for example), and incomplete numbers.
- Summarize data with descriptive statistics: Use mean, median, mode, range, and standard deviation to summarize your data.
- Interpret the data with inferential statistics: This is where it gets more complicated. Instead of simply summarizing stats, you’ll now use complicated mathematical and statistical formulas and tests—t-tests, chi-square tests, analysis of variance (ANOVA), and correlation, for starters—to assign meaning to your data.
Researchers generally use sophisticated data analysis tools like RapidMiner and Tableau to help them do this work.
#6. Flexibility
Quantitative research tends to be less flexible than qualitative research. It relies on structured data collection methods, which researchers must set up well before the study begins.
This rigid structure is part of what makes quantitative data so reliable. But the downside here is that once you start the study, it’s hard to change anything without negatively affecting the results. If something unexpected comes up—or if new questions arise—researchers can’t easily change the scope of the study.
Qualitative research is a lot more flexible. This is why qualitative data can go deeper than quantitative data. If you’re interviewing someone and an interesting, unexpected topic comes up, you can immediately explore it.
Other qualitative research methods offer flexibility, too. Most big survey software brands allow you to build flexible surveys using branching and skip logic. These features let you customize which questions respondents see based on the answers they give.
This flexibility is unheard of in quantitative research. But even though it’s as flexible as an Olympic gymnast, qualitative data can be less reliable—and harder to validate.
#7. Reliability and Validity
Quantitative data is more reliable than qualitative data. Numbers can’t be massaged to fit a certain bias. If you replicate the study—in other words, run the exact same quantitative study two or more times—you should get nearly identical results each time. The same goes if another set of researchers runs the same study using the same methods.
This is what gives quantitative data that reliability factor.
There are a few key benefits here. First, reliable data means you can confidently make generalizations that apply to a larger population. It also means the data is valid and accurately measures whatever it is you’re trying to measure.
And finally, reliable data is trustworthy. Big industries like healthcare, marketing, and education frequently use quantitative data to make life-or-death decisions. The more reliable and trustworthy the data, the more confident these decision-makers can be when it’s time to make critical choices.
Unlike quantitative data, qualitative data isn’t overtly reliable. It’s not easy to replicate. If you send out the same qualitative survey on two separate occasions, you’ll get a new mix of responses. Your interpretations of the data might look different, too.
There’s still incredible value in qualitative data, of course—and there are ways to make sure the data is valid. These include:
- Member checking: Circling back with survey, interview, or focus group respondents to make sure you accurately summarized and interpreted their feedback.
- Triangulation: Using multiple data sources, methods, or researchers to cross-check and corroborate findings.
- Peer debriefing: Showing the data to peers—other researchers—so they can review the research process and its findings and provide feedback on both.
Whether you’re dealing with qualitative or quantitative data, transparency, accuracy, and validity are crucial. Focus on sourcing (or conducting) quantitative research that’s easy to replicate and qualitative research that’s been peer-reviewed.
With rock-solid data like this, you can make critical business decisions with confidence.
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COMMENTS
Research Design and Methodology. Chapter 3 consists of three parts: (1) Purpose of the. study and research design, (2) Methods, and (3) Statistical. Data analysis procedure. Part one, Purpose of ...
17 Chapter III METHODOLOGY Research Locale The study was conducted at Marinduque National High School, a DepEd managed partially urban secondary public school and a mother school of all secondary public school in Marinduque. This school comprises Senior High School and offers two tracks which are Academic and Technical Vocational Tracks. Under Academic Track are General Academic Strand (GAS ...
This section is crucial for contextualizing your research and helping readers understand the setting and its potential influence on your study. Here are the steps to write an effective research locale: 1. Introduction to the Locale. Name and Description: Start by naming the locale and providing a brief description.
This section consists of the research study design, research locale, respondents of the study, research procedure, research instruments, data gathering procedure, and statistical technique of the data. Research Design This study involved a quantitative design to enhance the research and make the study reliable and valid.
For example, in a paper that describes the social behavior of chimpanzees, the authors may need to provide the following details about the research setting: where the chimpanzees were observed (in the wild or in captivity), the number of chimpanzees observed and whether they belonged to the same social group, the geographic location, the period ...
INTRODUCTION. Scientific research is usually initiated by posing evidenced-based research questions which are then explicitly restated as hypotheses.1,2 The hypotheses provide directions to guide the study, solutions, explanations, and expected results.3,4 Both research questions and hypotheses are essentially formulated based on conventional theories and real-world processes, which allow the ...
Chapter 3 RESEARCH AND METHODOLOGY This chapter describes the operational plan of work or strategy. A number of activities in the plan of work include the following operations: a) research design; b) research instruments; c) data gathering procedures; d) samples and samplings technique; e) research locale; f) statistical treatment of data. Research Design This study used the descriptive method ...
This discusses the research locale, research design, population sampling or respondents of the study, research instrument, and the statistical treatment of data. 3.1 Research Locale 3.1.1 This discusses the place or setting of the study. It describes in brief the place where the study is conducted. Only important features which have the bearing
d analysis and interpretation. A. Research MethodThis study used a mixed method. which is the qualitative and quantitative research. A purposive sampling method was used to gather data using a questionnaire checklist which. nalyzed by mean and percentages.B. Research DesignThis is a descriptive evaluative research design aimed at assessing the ...
The Research Design •The research design is the actual structure or framework that indicates (a) the time frame(s) in which data will be collected, (b) when the intervention will be implemented (or not), and (c) how many groups will be involved (Edmonds & Kennedy, 2012). •Example Research Designs Quantitative Correlational -Explanatory design
Example of Methodology Research Locale 17 chapter methodology research locale the study was conducted at marinduque national high school, deped managed. Skip to document. University; High School; Books; ... Example of Methodology Research Locale. Course. Introduction to entrepreneurship (ENTREP 100) 155 Documents. Students shared 155 documents ...
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Mixed-methods research is a flexible approach, where the research design is determined by what we want to find out rather than by any predetermined epistemological position. In mixed-methods research, qualitative or quantitative components can predominate, or both can have equal status. 1.4. Units and variables.
This one was chosen from among many possible research questions (e.g., the impact of bullying on suicide rates, or children or adults). Delimiting factors could include: Research design: Mixed-methods research, including thematic analysis of semi-structured interviews and statistical analysis of a survey; Timeframe: Data collection to run for 3 ...
This resource is intended as an easy-to-use guide for anyone who needs some quick and simple advice on quantitative aspects of research in social sciences, covering subjects such as education, sociology, business, nursing. If you area qualitative researcher who needs to venture into the world of numbers, or a student instructed to undertake a quantitative research project despite a hatred for ...
In quantitative research, a variable is something (an intervention technique, a pharmaceutical, a temperature, etc.) that changes. There are two kinds of variables: independent variables and dependent variables.In the simplest terms, the independent variable is whatever the researchers are using to attempt to make a change in their dependent variable.
The necessity, importance, relevance, and urgency of quantitative research are articulated, establishing a strong foundation for the subsequent discussion, which delineates the scope, objectivity, goals, data, and methods that distinguish quantitative research, alongside a balanced inspection of its strengths and shortcomings, particularly in ...
Below are just some of the stories that need to be conveyed with respect to research based on quantitative data, such as the QCI database. Maree Lakota, in the QCI research context, would certainly need to unfold each of these stories in order to produce a convincing research report. Choice of approaches to analysis and reasoning for those ...
Revised on June 22, 2023. Quantitative research is the process of collecting and analyzing numerical data. It can be used to find patterns and averages, make predictions, test causal relationships, and generalize results to wider populations. Quantitative research is the opposite of qualitative research, which involves collecting and analyzing ...
Quantitative research is the process of collecting and analyzing numerical data to describe, predict, or control variables of interest. This type of research helps in testing the causal relationships between variables, making predictions, and generalizing results to wider populations. The purpose of quantitative research is to test a predefined ...
Eun-Mi Baek. This paper aims to examine the impacts of social isolation and risk perception on social networking intensity during COVID-19. Data was gathered from 345 university students. The ...
Research Example ,you can see it chapter 1 to 5 republic of the philippines department of education region ii cagayan valley division of cauayan city cauayan. ... descriptive evaluative research used quantitative method to gather information id 19 pandemic, study utilized descriptive from the participants. There are one hundred thirty-two (132 ...
This flexibility is unheard of in quantitative research. But even though it's as flexible as an Olympic gymnast, qualitative data can be less reliable—and harder to validate. #7. Reliability and Validity. Quantitative data is more reliable than qualitative data. Numbers can't be massaged to fit a certain bias.