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Qualitative Research 101: Interviewing
5 Common Mistakes To Avoid When Undertaking Interviews
By: David Phair (PhD) and Kerryn Warren (PhD) | March 2022
Undertaking interviews is potentially the most important step in the qualitative research process. If you don’t collect useful, useable data in your interviews, you’ll struggle through the rest of your dissertation or thesis. Having helped numerous students with their research over the years, we’ve noticed some common interviewing mistakes that first-time researchers make. In this post, we’ll discuss five costly interview-related mistakes and outline useful strategies to avoid making these.
Overview: 5 Interviewing Mistakes
- Not having a clear interview strategy /plan
- Not having good interview techniques /skills
- Not securing a suitable location and equipment
- Not having a basic risk management plan
- Not keeping your “ golden thread ” front of mind
1. Not having a clear interview strategy
The first common mistake that we’ll look at is that of starting the interviewing process without having first come up with a clear interview strategy or plan of action. While it’s natural to be keen to get started engaging with your interviewees, a lack of planning can result in a mess of data and inconsistency between interviews.
There are several design choices to decide on and plan for before you start interviewing anyone. Some of the most important questions you need to ask yourself before conducting interviews include:
- What are the guiding research aims and research questions of my study?
- Will I use a structured, semi-structured or unstructured interview approach?
- How will I record the interviews (audio or video)?
- Who will be interviewed and by whom ?
- What ethics and data law considerations do I need to adhere to?
- How will I analyze my data?
Let’s take a quick look at some of these.
The core objective of the interviewing process is to generate useful data that will help you address your overall research aims. Therefore, your interviews need to be conducted in a way that directly links to your research aims, objectives and research questions (i.e. your “golden thread”). This means that you need to carefully consider the questions you’ll ask to ensure that they align with and feed into your golden thread. If any question doesn’t align with this, you may want to consider scrapping it.
Another important design choice is whether you’ll use an unstructured, semi-structured or structured interview approach . For semi-structured interviews, you will have a list of questions that you plan to ask and these questions will be open-ended in nature. You’ll also allow the discussion to digress from the core question set if something interesting comes up. This means that the type of information generated might differ a fair amount between interviews.
Contrasted to this, a structured approach to interviews is more rigid, where a specific set of closed questions is developed and asked for each interviewee in exactly the same order. Closed questions have a limited set of answers, that are often single-word answers. Therefore, you need to think about what you’re trying to achieve with your research project (i.e. your research aims) and decided on which approach would be best suited in your case.
It is also important to plan ahead with regards to who will be interviewed and how. You need to think about how you will approach the possible interviewees to get their cooperation, who will conduct the interviews, when to conduct the interviews and how to record the interviews. For each of these decisions, it’s also essential to make sure that all ethical considerations and data protection laws are taken into account.
Finally, you should think through how you plan to analyze the data (i.e., your qualitative analysis method) generated by the interviews. Different types of analysis rely on different types of data, so you need to ensure you’re asking the right types of questions and correctly guiding your respondents.
Simply put, you need to have a plan of action regarding the specifics of your interview approach before you start collecting data. If not, you’ll end up drifting in your approach from interview to interview, which will result in inconsistent, unusable data.
![interview-golden-thread Your interview questions need to directly link to your research aims, objectives and research questions - your "golden thread”.](https://gradcoach.com/wp-content/uploads/interview-golden-thread.png)
2. Not having good interview technique
While you’re generally not expected to become you to be an expert interviewer for a dissertation or thesis, it is important to practice good interview technique and develop basic interviewing skills .
Let’s go through some basics that will help the process along.
Firstly, before the interview , make sure you know your interview questions well and have a clear idea of what you want from the interview. Naturally, the specificity of your questions will depend on whether you’re taking a structured, semi-structured or unstructured approach, but you still need a consistent starting point . Ideally, you should develop an interview guide beforehand (more on this later) that details your core question and links these to the research aims, objectives and research questions.
Before you undertake any interviews, it’s a good idea to do a few mock interviews with friends or family members. This will help you get comfortable with the interviewer role, prepare for potentially unexpected answers and give you a good idea of how long the interview will take to conduct. In the interviewing process, you’re likely to encounter two kinds of challenging interviewees ; the two-word respondent and the respondent who meanders and babbles. Therefore, you should prepare yourself for both and come up with a plan to respond to each in a way that will allow the interview to continue productively.
To begin the formal interview , provide the person you are interviewing with an overview of your research. This will help to calm their nerves (and yours) and contextualize the interaction. Ultimately, you want the interviewee to feel comfortable and be willing to be open and honest with you, so it’s useful to start in a more casual, relaxed fashion and allow them to ask any questions they may have. From there, you can ease them into the rest of the questions.
As the interview progresses , avoid asking leading questions (i.e., questions that assume something about the interviewee or their response). Make sure that you speak clearly and slowly , using plain language and being ready to paraphrase questions if the person you are interviewing misunderstands. Be particularly careful with interviewing English second language speakers to ensure that you’re both on the same page.
Engage with the interviewee by listening to them carefully and acknowledging that you are listening to them by smiling or nodding. Show them that you’re interested in what they’re saying and thank them for their openness as appropriate. This will also encourage your interviewee to respond openly.
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3. Not securing a suitable location and quality equipment
Where you conduct your interviews and the equipment you use to record them both play an important role in how the process unfolds. Therefore, you need to think carefully about each of these variables before you start interviewing.
Poor location: A bad location can result in the quality of your interviews being compromised, interrupted, or cancelled. If you are conducting physical interviews, you’ll need a location that is quiet, safe, and welcoming . It’s very important that your location of choice is not prone to interruptions (the workplace office is generally problematic, for example) and has suitable facilities (such as water, a bathroom, and snacks).
If you are conducting online interviews , you need to consider a few other factors. Importantly, you need to make sure that both you and your respondent have access to a good, stable internet connection and electricity. Always check before the time that both of you know how to use the relevant software and it’s accessible (sometimes meeting platforms are blocked by workplace policies or firewalls). It’s also good to have alternatives in place (such as WhatsApp, Zoom, or Teams) to cater for these types of issues.
Poor equipment: Using poor-quality recording equipment or using equipment incorrectly means that you will have trouble transcribing, coding, and analyzing your interviews. This can be a major issue , as some of your interview data may go completely to waste if not recorded well. So, make sure that you use good-quality recording equipment and that you know how to use it correctly.
To avoid issues, you should always conduct test recordings before every interview to ensure that you can use the relevant equipment properly. It’s also a good idea to spot check each recording afterwards, just to make sure it was recorded as planned. If your equipment uses batteries, be sure to always carry a spare set.
![qual-interview-equipment Where you conduct your interviews and the equipment you use to record them play an important role in how the process unfolds.](https://gradcoach.com/wp-content/uploads/qual-interview-equipment.png)
4. Not having a basic risk management plan
Many possible issues can arise during the interview process. Not planning for these issues can mean that you are left with compromised data that might not be useful to you. Therefore, it’s important to map out some sort of risk management plan ahead of time, considering the potential risks, how you’ll minimize their probability and how you’ll manage them if they materialize.
Common potential issues related to the actual interview include cancellations (people pulling out), delays (such as getting stuck in traffic), language and accent differences (especially in the case of poor internet connections), issues with internet connections and power supply. Other issues can also occur in the interview itself. For example, the interviewee could drift off-topic, or you might encounter an interviewee who does not say much at all.
You can prepare for these potential issues by considering possible worst-case scenarios and preparing a response for each scenario. For instance, it is important to plan a backup date just in case your interviewee cannot make it to the first meeting you scheduled with them. It’s also a good idea to factor in a 30-minute gap between your interviews for the instances where someone might be late, or an interview runs overtime for other reasons. Make sure that you also plan backup questions that could be used to bring a respondent back on topic if they start rambling, or questions to encourage those who are saying too little.
In general, it’s best practice to plan to conduct more interviews than you think you need (this is called oversampling ). Doing so will allow you some room for error if there are interviews that don’t go as planned, or if some interviewees withdraw. If you need 10 interviews, it is a good idea to plan for 15. Likely, a few will cancel , delay, or not produce useful data.
![interview-risk-mgty You should consider all the potential risks, how you’ll reduce their probability and how you'll respond if they do indeed materialize.](https://gradcoach.com/wp-content/uploads/interview-risk-mgty.png)
5. Not keeping your golden thread front of mind
We touched on this a little earlier, but it is a key point that should be central to your entire research process. You don’t want to end up with pages and pages of data after conducting your interviews and realize that it is not useful to your research aims . Your research aims, objectives and research questions – i.e., your golden thread – should influence every design decision and should guide the interview process at all times.
A useful way to avoid this mistake is by developing an interview guide before you begin interviewing your respondents. An interview guide is a document that contains all of your questions with notes on how each of the interview questions is linked to the research question(s) of your study. You can also include your research aims and objectives here for a more comprehensive linkage.
You can easily create an interview guide by drawing up a table with one column containing your core interview questions . Then add another column with your research questions , another with expectations that you may have in light of the relevant literature and another with backup or follow-up questions . As mentioned, you can also bring in your research aims and objectives to help you connect them all together. If you’d like, you can download a copy of our free interview guide here .
Recap: Qualitative Interview Mistakes
In this post, we’ve discussed 5 common costly mistakes that are easy to make in the process of planning and conducting qualitative interviews.
To recap, these include:
If you have any questions about these interviewing mistakes, drop a comment below. Alternatively, if you’re interested in getting 1-on-1 help with your thesis or dissertation , check out our dissertation coaching service or book a free initial consultation with one of our friendly Grad Coaches.
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Using an interview in a research paper
Consultant contributor: Viviane Ugalde
Using an interview can be an effective primary source for some papers and research projects. Finding an expert in the field or some other person who has knowledge of your topic can allow for you to gather unique information not available elsewhere.
There are four steps to using an interview as a source for your research.
- Know where and how to start.
- Know how to write a good question.
- Know how to conduct an interview.
- Know how to incorporate the interview into your document or project.
Step one: Where to start
First, you should determine your goals and ask yourself these questions:
- Who are the local experts on topic?
- How can I contact these people?
- Does anyone know them to help me setup the interviews?
- Are their phone numbers in the phone book or can I find them on the Internet?
Once you answer these questions and pick your interviewee, get their basic information such as their name, title, and other general details. If you reach out and your interview does not participate, don’t be discouraged. Keep looking for other interview contacts.
Step two: How to write a good question
When you have confirmed an interview, it is not time to come up with questions.
- Learning as much as you can about the person before the interview can help you create questions specific to your interview subject.
- Doing research about your interviewee’s past experience in your topic, or any texts that they have written would be great background research.
When you start to think of questions, write down more questions than you think you’ll need, and prioritize them as you go. Any good questions will answer the 5W and H questions. Asking Who, What, When, Where, Why, and How questions that you need answered for your paper, will help you form a question to ask your interviewee.
When writing a good question, try thinking of something that will help your argument.
- Is your interviewee an advocate for you position?
- Are they in any programs that are related to your research?
- How much experience do they have?
From broad questions like these, you can begin to narrow down to more specific and open-ended questions.
Step three: The interview
If at all possible, arrange to conduct the interview at the subject’s workplace. It will make them more comfortable, and you can write about their surroundings.
- Begin the interview with some small talk in order to give both of you the chance to get comfortable with one another
- Develop rapport that will make the interview easier for both of you.
- Ask open-ended questions
- Keep the conversation moving
- Stay on topic
- The more silence in the room, the more honest the answer.
- If an interesting subject comes up that is related to your research, ask a follow-up or an additional question about it.
- Ask if you can stay in contact with your interview subject in case there are any additional questions you have.
Step four: Incorporating the interview
When picking the material out of your interview, remember that people rarely speak perfectly. There will be many slang words and pauses that you can take out, as long as it does not change the meaning of the material you are using.
As you introduce your interview in the paper, start with a transition such as “according to” or other attributions. You should also be specific to the type of interview you are working with. This way, you will build a stronger ethos in your paper .
The body of your essay should clearly set up the quote or paraphrase you use from the interview responses,. Be careful not to stick a quote from the interview into the body of your essay because it sounds good. When deciding what to quote in your paper, think about what dialogue from the interview would add the most color to your interview. Quotes that illustrate what your interviewer sounded like, or what their personality is are always the best quotes to choose from.
Once you have done that, proofread your essay. Make sure the quotes you used don’t make up the majority of your paper. The interview quotes are supposed to support your argument; you are not supposed to support the interview.
For example, let’s say that you are arguing that free education is better than not. For your argument, you interview a local politician who is on your side of the argument. Rather than using a large quote that explains the stance of both sides, and why the politician chose this side, your quote is there to support the information you’ve already given. Whatever the politician says should prove what you argue, and not give new information.
Step five: Examples of citing your interviews
Smith, Jane. Personal interview. 19 May 2018.
(E. Robbins, personal communication, January 4, 2018).
Smith also claimed that many of her students had difficulties with APA style (personal communication, November 3, 2018).
Reference list
Daly, C. & Leighton W. (2017). Interviewing a Source: Tips. Journalists Resource.
Driscoll, D. (2018 ). Interviewing. Purdue University
Hayden, K. (2012). How to Conduct an Interview to Write a Paper . Bright Hub Education, Bright Hub Inc.
Hose, C. (2017). How to Incorporate Interviews into Essays. Leaf Group Education.
Magnesi, J. (2017). How to Interview Someone for an Article or Research Paper. Career Trend, Leaf group Media.
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Research, Record, and Transcribe Better
Preparing Questions for a Qualitative Research Interview
Updated on: June 22, 2024
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A qualitative research interview is an invaluable tool for researchers. Whether one’s studying social phenomena, exploring personal narratives, or investigating complex issues, interviews offer a means to gain unique insights.
“The quality of the data collected in a qualitative research interview is highly dependent on the quality and appropriateness of the questions asked.”
But how do you prepare the right questions to ensure your interviews yield rich data? In this guide, we’ll explore the types of qualitative research interviews and provide tips for crafting effective questions.
Table of Contents
Types of Qualitative Research Interviews
Before diving into question preparation, it’s important to select the type of qualitative research interview that’s best suited for the study at hand.
There are three types of qualitative research interviews:
Structured Interviews
Structured interviews involve asking the same set of pre-written questions to every participant. This approach ensures consistency, making it easier to compare data between participants or groups later.
When conducting structured interviews, keep these guidelines in mind:
- Pre-written Questions : All questions, including probes, should be meticulously written in advance.
- Detailed Questions : Questions should be detailed enough to be used verbatim during interviews.
- Consistent Sequence : The sequence of questions should be pre-decided and consistent across interviews.
Example of a Structured Interview Question
Question : Thinking back to your childhood days in Chelsea, can you remember what kind of local music was popular at the time?
- Why do you think it was so popular?
- Where was it played?
- Were there other popular genres?
Structured interviews are ideal when you need uniform data collection across all participants. They are common in large-scale studies or when comparing responses quantitatively.
Read more: Advantages & Disadvantages of Structured Interviews
Semi-structured Interviews
The second type of qualitative interviews are semi-structured interviews. In these interviews, the interview guide outlines the topics to be explored, but the actual questions are not pre-written.
This approach allows interviewers the freedom to phrase questions spontaneously and explore topics in more depth.
Example of a Semi-Structured Interview Question
Question : What problems did the participant face growing up in the community?
- Education-related.
- Related to their immediate family.
- Related to the community in general.
Semi-structured interviews strike a balance between flexibility and structure. They offer a framework within which interviewers can adapt questions to participants’ responses, making them suitable for in-depth exploration.
Unstructured Interviews
In unstructured interviews, often referred to as informal conversational interviews , are characterized by a lack of formal guidelines, predefined questions, or sequencing.
Questions emerge during the interview based on the conversation’s flow and the interviewee’s observations. Consequently, each unstructured interview is unique, and questions may evolve over time.
Unstructured interviews are highly exploratory and can lead to unexpected insights. They are particularly valuable when studying complex or novel phenomena where predefined questions may limit understanding.
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Deciding What Information You Need
Once you’ve chosen the type of interview that suits your research study, the next step is to decide what information you need to collect.
Patton’s six types of questions offer a framework for shaping your inquiries:
- Behavior or Experience : Explore participants’ actions and experiences.
- Opinion or Belief : Probe participants’ beliefs, attitudes, and opinions.
- Feelings : Delve into the emotional aspects of participants’ experiences.
- Knowledge : Assess participants’ understanding and awareness of a topic.
- Sensory : Investigate how participants perceive and interact with their environment.
- Background or Demographic : Collect information about participants’ personal characteristics and histories.
Based on these categories, create a list of the specific information you aim to collect through the interview. This step ensures that your questions align with your research objectives.
Writing the Qualitative Research Interview Questions
After deciding the type of interview and nature of information you’d like to gather, the next step is to write the actual questions.
Using Open-Ended Questions
Open-ended questions are the backbone of qualitative research interviews. They encourage participants to share their experiences and thoughts in-depth, providing rich, detailed data.
Avoid ‘yes’ or ‘no’ questions, as they limit responses. Instead, use open-ended questions that grant participants the freedom to express themselves. Here are some examples –
Examples of Open-Ended Questions
How do you feel about working at ABC Corp. during your initial years there?
- Encourages participants to share their emotions and experiences.
Can you describe the attitudes and approach to work of the other people working with you at the time?
- Invites participants to reflect on their colleagues’ behaviors and attitudes.
Tell me more about your relationship with your peers.
- Encourages participants to provide narrative insights into their relationships.
Read More: 100 Open-Ended Qualitative Interview Questions
Going from Unstructured to Structured Questions
Unstructured Questions allow the interviewee to guide the conversation, letting them focus on what they think is most important.
These questions make the interview longer, but also provide richer and deeper insight.
Examples of Unstructured Questions
- Tell me about your experience working at [xxx].
- What did it feel like to live in that neighborhood?
- What stood out to you as the defining characteristic of that neighborhood?
Examples of Structured Questions
- What are some ways people dealt with the health issues caused by excessive chemical industries in the neighborhood?
- As an employee at ABC Corp. during the time, did you observe any specific actions taken by the employers to address the issue?
Probing Questions
Probing questions are used to get more information about an answer or clarify something. They help interviewers dig deeper, clarify responses, and gain a more comprehensive understanding.
Examples of Probing Questions
Tell me more about that.
- Encourages participants to elaborate on their previous response.
And how did you feel about that?
- Invites participants to share their emotional reactions.
What do you mean when you say [xxx]?
- Seeks clarification on ambiguous or complex statements.
Probing questions enhance the depth and clarity of the data collected, however they should be used judiciously to avoid overwhelming participants.
A General Last Question
As your interview approaches its conclusion, it’s beneficial to have a general last question that allows the interviewee to share any additional thoughts or opinions they feel are relevant.
For instance, you might ask:
Thank you for all that valuable information. Is there anything else you’d like to add before we end?
This open-ended question provides participants with a final opportunity to express themselves fully, ensuring that no critical insights are left unshared.
Preparing questions for qualitative research interviews requires a thoughtful approach that considers the interview type, desired information, and the balance between structured and unstructured questioning.
Here’s a great guide from the Harvard University on the subject.
Read More: How to Transcribe an Interview – A Complete Guide
- Choosing the Right Setting for a Qualitative Research Interview
- 5 Ways Researchers can Transcribe from Audio to Text
Reader Interactions
hlabishi says
April 8, 2015 at 12:37 pm
I found the information valuable. It will assist me a lot with my research work.
Harpinder says
June 8, 2015 at 10:40 pm
I am going for my pilot study. Above information is really valuable for me. Thank you.
September 28, 2015 at 10:21 am
thank you for Patton’s 6 types of questions related to: 1. Behavior or experience. 2. Opinion or belief. 3. Feelings. 4. Knowledge. 5. Sensory. 6. Background or demographic. Really helpful
IBRAHIM A. ALIYU says
October 7, 2015 at 6:04 pm
Very interesting and good guides, thanks a lot
Dumisani says
July 31, 2017 at 7:55 am
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Yongama says
June 5, 2018 at 11:57 pm
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Joshua Nonwo says
June 3, 2019 at 11:02 pm
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June 12, 2019 at 7:36 pm
Thanks a lot. Example of structured interview broadens My mind in formulating my structured research question. Indeed very helpful.
mwiine says
November 29, 2019 at 6:31 am
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November 29, 2019 at 7:54 am
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January 20, 2020 at 3:19 pm
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Daniel says
June 1, 2020 at 6:21 pm
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December 8, 2020 at 9:03 am
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Cosmas W.K. Mereku (Prof.) says
June 15, 2021 at 8:59 am
I am teaching 42 MPhil and 6 PhD postgraduate music students research methods this academic year. Your guide to qualitative research interview questions has been very useful. Because the students are in different disciplines (music education, music composition, ethnomusicology and performance), all the types of questions discussed have been very useful. Thank you very much.
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June 16, 2021 at 12:45 pm
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- Types of Interviews in Research | Guide & Examples
Types of Interviews in Research | Guide & Examples
Published on March 10, 2022 by Tegan George . Revised on June 22, 2023.
An interview is a qualitative research method that relies on asking questions in order to collect data . Interviews involve two or more people, one of whom is the interviewer asking the questions.
There are several types of interviews, often differentiated by their level of structure.
- Structured interviews have predetermined questions asked in a predetermined order.
- Unstructured interviews are more free-flowing.
- Semi-structured interviews fall in between.
Interviews are commonly used in market research, social science, and ethnographic research .
Table of contents
What is a structured interview, what is a semi-structured interview, what is an unstructured interview, what is a focus group, examples of interview questions, advantages and disadvantages of interviews, other interesting articles, frequently asked questions about types of interviews.
Structured interviews have predetermined questions in a set order. They are often closed-ended, featuring dichotomous (yes/no) or multiple-choice questions. While open-ended structured interviews exist, they are much less common. The types of questions asked make structured interviews a predominantly quantitative tool.
Asking set questions in a set order can help you see patterns among responses, and it allows you to easily compare responses between participants while keeping other factors constant. This can mitigate research biases and lead to higher reliability and validity. However, structured interviews can be overly formal, as well as limited in scope and flexibility.
- You feel very comfortable with your topic. This will help you formulate your questions most effectively.
- You have limited time or resources. Structured interviews are a bit more straightforward to analyze because of their closed-ended nature, and can be a doable undertaking for an individual.
- Your research question depends on holding environmental conditions between participants constant.
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Semi-structured interviews are a blend of structured and unstructured interviews. While the interviewer has a general plan for what they want to ask, the questions do not have to follow a particular phrasing or order.
Semi-structured interviews are often open-ended, allowing for flexibility, but follow a predetermined thematic framework, giving a sense of order. For this reason, they are often considered “the best of both worlds.”
However, if the questions differ substantially between participants, it can be challenging to look for patterns, lessening the generalizability and validity of your results.
- You have prior interview experience. It’s easier than you think to accidentally ask a leading question when coming up with questions on the fly. Overall, spontaneous questions are much more difficult than they may seem.
- Your research question is exploratory in nature. The answers you receive can help guide your future research.
An unstructured interview is the most flexible type of interview. The questions and the order in which they are asked are not set. Instead, the interview can proceed more spontaneously, based on the participant’s previous answers.
Unstructured interviews are by definition open-ended. This flexibility can help you gather detailed information on your topic, while still allowing you to observe patterns between participants.
However, so much flexibility means that they can be very challenging to conduct properly. You must be very careful not to ask leading questions, as biased responses can lead to lower reliability or even invalidate your research.
- You have a solid background in your research topic and have conducted interviews before.
- Your research question is exploratory in nature, and you are seeking descriptive data that will deepen and contextualize your initial hypotheses.
- Your research necessitates forming a deeper connection with your participants, encouraging them to feel comfortable revealing their true opinions and emotions.
A focus group brings together a group of participants to answer questions on a topic of interest in a moderated setting. Focus groups are qualitative in nature and often study the group’s dynamic and body language in addition to their answers. Responses can guide future research on consumer products and services, human behavior, or controversial topics.
Focus groups can provide more nuanced and unfiltered feedback than individual interviews and are easier to organize than experiments or large surveys . However, their small size leads to low external validity and the temptation as a researcher to “cherry-pick” responses that fit your hypotheses.
- Your research focuses on the dynamics of group discussion or real-time responses to your topic.
- Your questions are complex and rooted in feelings, opinions, and perceptions that cannot be answered with a “yes” or “no.”
- Your topic is exploratory in nature, and you are seeking information that will help you uncover new questions or future research ideas.
Depending on the type of interview you are conducting, your questions will differ in style, phrasing, and intention. Structured interview questions are set and precise, while the other types of interviews allow for more open-endedness and flexibility.
Here are some examples.
- Semi-structured
- Unstructured
- Focus group
- Do you like dogs? Yes/No
- Do you associate dogs with feeling: happy; somewhat happy; neutral; somewhat unhappy; unhappy
- If yes, name one attribute of dogs that you like.
- If no, name one attribute of dogs that you don’t like.
- What feelings do dogs bring out in you?
- When you think more deeply about this, what experiences would you say your feelings are rooted in?
Interviews are a great research tool. They allow you to gather rich information and draw more detailed conclusions than other research methods, taking into consideration nonverbal cues, off-the-cuff reactions, and emotional responses.
However, they can also be time-consuming and deceptively challenging to conduct properly. Smaller sample sizes can cause their validity and reliability to suffer, and there is an inherent risk of interviewer effect arising from accidentally leading questions.
Here are some advantages and disadvantages of each type of interview that can help you decide if you’d like to utilize this research method.
Type of interview | Advantages | Disadvantages |
---|---|---|
Structured interview | ||
Semi-structured interview | , , , and | |
Unstructured interview | , , , and | |
Focus group | , , and , since there are multiple people present |
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.
- Student’s t -distribution
- Normal distribution
- Null and Alternative Hypotheses
- Chi square tests
- Confidence interval
- Quartiles & Quantiles
- Cluster sampling
- Stratified sampling
- Data cleansing
- Reproducibility vs Replicability
- Peer review
- Prospective cohort study
Research bias
- Implicit bias
- Cognitive bias
- Placebo effect
- Hawthorne effect
- Hindsight bias
- Affect heuristic
- Social desirability bias
The four most common types of interviews are:
- Structured interviews : The questions are predetermined in both topic and order.
- Semi-structured interviews : A few questions are predetermined, but other questions aren’t planned.
- Unstructured interviews : None of the questions are predetermined.
- Focus group interviews : The questions are presented to a group instead of one individual.
The interviewer effect is a type of bias that emerges when a characteristic of an interviewer (race, age, gender identity, etc.) influences the responses given by the interviewee.
There is a risk of an interviewer effect in all types of interviews , but it can be mitigated by writing really high-quality interview questions.
Social desirability bias is the tendency for interview participants to give responses that will be viewed favorably by the interviewer or other participants. It occurs in all types of interviews and surveys , but is most common in semi-structured interviews , unstructured interviews , and focus groups .
Social desirability bias can be mitigated by ensuring participants feel at ease and comfortable sharing their views. Make sure to pay attention to your own body language and any physical or verbal cues, such as nodding or widening your eyes.
This type of bias can also occur in observations if the participants know they’re being observed. They might alter their behavior accordingly.
A focus group is a research method that brings together a small group of people to answer questions in a moderated setting. The group is chosen due to predefined demographic traits, and the questions are designed to shed light on a topic of interest. It is one of 4 types of interviews .
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.
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Interviews for qualitative or quantitative research?
What type of interviews are there, recruiting respondents, interview step-by-step plan, asking good interview questions, how do you transcribe interviews, incorporating the interviews into your thesis, our best tips for interview techniques.
Are interviews necessary for your thesis? In that case, there are a few things to consider. You have to decide what kind of interview to conduct. You need to draw up good questions. You also have to choose an appropriate transcription method and incorporate the interview results into your thesis correctly. How do you do all of this properly? Here you will find everything you need to know about conducting and processing interviews for your thesis.
Interviews are an appropriate form of data collection in both quantitative and qualitative research.
Quantitative research is all about numbers and testing hypotheses.
In qualitative research, you primarily go into detail collecting opinions, experiences and ideas to fully understand a concept.
In qualitative research, you usually see open-ended questions because they lead to rich data. In quantitative research, closed questions are more common.
Roughly speaking, we can distinguish between a few types of interviews. The most common are the following interview forms:
Structured interviews: you follow a strict interview schedule with a fixed order of questions so that all interviews take place in the same way.
Semi-structured interviews: you prepare the questions, but can deviate on the spot from your preparation during the interview (e.g. if you want to ask further questions).
Unstructured interviews: in advance, you have only prepared a list with topics you want to ask about; the questions you want to ask are not yet known.
Focus group: you get a group of people together to talk to each other about a topic, and you are the one to ask the questions and facilitate the conversation.
Group interview: you interview several people at the same time about various topics, focusing more on the interaction between you and the interviewees than the participants engaging with each other.
To conduct interviews, you need to find people willing to be interviewed. Sometimes one or two interviews will suffice, for instance in a case study. There are also research methods that require a larger number of interviews. The number of interviews that is ideal depends on your research goal and research question.
The more interviews you conduct, the greater the reliability and validity of your results. Your research results are then more likely to reflect reality.
Discuss with your thesis supervisor in advance how many interviews would be ideal for your research. Keep the time schedule in mind. Of course, the number of interviews should be realistic within the time you have to recruit respondents and conduct interviews.
To conduct an interview, you go through several stages. Good preparation is very important. Our interview roadmap will help you do this properly. Follow these 6 steps:
Choose the type of interview.
Prepare the interview guide.
Practice your interview techniques.
Start the interview in the right way.
Conduct the interview.
Transcribe the conversation.
A good interview depends on the quality of the questions you ask. Take the time to draft good and clear questions. These tips for formulating interview questions will help you do just that.
For example, note the following:
Ask non-directive questions. Be objective in your questioning to avoid pressuring your interviewee into giving socially desirable answers.
Be as clear as possible with your questions. Keep them short, be specific, avoid jargon, and only ask one question at a time.
Ask the questions in a logical order. For example, this could be in chronological order if you ask people to describe an event. Another option is to start with questions about the problem and its causes and later ask questions about possible solutions.
Make a good trade-off between open and closed questions. With open questions, you get richer answers; with closed questions, the answers are more limited, but the answers are more comparable. Try to achieve a balance that suits your research question.
To analyse, code, and use the interview data in your thesis, you need to transcribe the interviews first.
We list the main points of interest in our article on transcribing interviews. Read here, for example, which transcription methods exist and which software you can use to make your life a lot easier. Are you willing to pay a small amount of money? Then, you may want to consider outsourcing your transcription.
If all goes well, interesting findings will emerge from the interviews. Processing the data from the interviews in your thesis is done as follows:
In the method chapter , describe how you conducted the interviews. For example, indicate the interview format, explain how you arrived at the questionnaire and describe the results of any pre-test you do.
In the results chapter , summarise the main findings from the interviews. Refer to the interview data using quotes or paraphrases. You may find the various models for your thesis, such as risk analysis or SWOT analysis, useful for your data analysis.
In the conclusion , answer your research question based on the interview data (and any other research methods or sources).
In the discussion , explain what you did to ensure the reliability and validity of your study. Also, mention the possible limitations of the chosen interview method here.
Put the interview transcripts in the appendices . You can also include the questionnaire or topic list you used in the appendix. Refer to this in the running text of your thesis.
Do you doubt whether you have placed the interview data in the right place and used the correct thesis structure? The editors of AthenaCheck will be happy to check your thesis for proper structure, a common thread and/or language and spelling. This way, you can be sure that your thesis is well put together in these areas.
The quality of your data largely depends on your qualities as an interviewer. We are happy to help you tackle the interview in the best possible way. Check out our tips for useful interview techniques, such as:
Listen more rather than speak more. Above all, let the interviewee speak.
Ask further questions if the interviewee says something interesting.
Above all, ask open-ended questions, as they provide richer data.
Formulate your questions neutrally so that you don't steer the interviewee too much towards a particular answer.
Be clear and specific with your questions.
Avoid jargon.
Keep an eye on non-verbal cues from the interviewee. These cues sometimes tell you more than a thousand words could. You can tell, for example, if someone does not understand something or if the interviewee is getting emotional.
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This is the first question you should ask yourself before you include the interviewee’s name in a dissertation. Determine, in consultation with the interviewee, whether the name should be anonymized (and get informed consent). Sometimes, in fact, the interviewee doesn’t want that.
Your research aims, objectives and research questions – i.e., your golden thread – should influence every design decision and should guide the interview process at all times. A useful way to avoid this mistake is by developing an interview guide before you begin interviewing your respondents.
Know where and how to start. Know how to write a good question. Know how to conduct an interview. Know how to incorporate the interview into your document or project. Step one: Where to start. First, you should determine your goals and ask yourself these questions: Who are the local experts on topic? How can I contact these people?
Ask “how” questions not “do”. Use “tell me about” and “tell me more about that”. Use open-ended questions. Approach your topic sideways. Don’t take the first answer as a final answer. Ask for elaboration. Ask for counter-examples. Ask if their rationale is all-encompassing.
Choosing the Right Setting for a Qualitative Research Interview. 5 Ways Researchers can Transcribe from Audio to Text. Creating open-ended, close-ended and probing questions in structured, semi-structured, and unstructured for a qualitative research interview.
Examples of interview questions. Depending on the type of interview you are conducting, your questions will differ in style, phrasing, and intention. Structured interview questions are set and precise, while the other types of interviews allow for more open-endedness and flexibility. Here are some examples.
SCHEDULE A FREE STRATEGY CALL. Interview questions for research are questions that I will ask my participants that align with my research and reflect the themes from literature.
For elaboration: “Can you give me an example?” For steering the conversation: “You mentioned that...” Probes can be non-verbal as well, such as using silence to encourage elaboration, or leaning forward to indicate interest. Be careful to vary the probes and not to overuse them. You should also be prepared to reframe questions.
Recruiting respondents. Interview step-by-step plan. Asking good interview questions. How do you transcribe interviews? Incorporating the interviews into your thesis. Our best tips for interview techniques. Are interviews necessary for your thesis? In that case, there are a few things to consider.
Identifying & Planning Research. Jan 15, 2021. MethodSpace will explore phases of the research process throughout 2021. In the first quarter will explore design steps, starting with a January focus on research questions. Find the unfolding series here.