What Is a Semi-Structured Interview? | Ultimate Guide
Key takeaways
- Semi-structured interviews balance structure and flexibility use a predefined set of topics or questions while allowing interviewers to ask follow-up questions and explore unexpected insights.
- They are especially useful for exploratory research and recruitment. They are ideal for gathering rich, in-depth information.
- Flexibility enables deeper conversations and more detailed responses, but it can also make interviews harder to compare and increase the risk of interviewer bias, making careful planning, neutrality, and structured analysis essential.
A semi-structured interview is a qualitative data collection method that combines predetermined questions with the flexibility to ask unplanned follow-up questions.
Semi-structured interviews are commonly used as an exploratory research method in social sciences, marketing, and other disciplines. They are typically qualitative, aiming to gather in-depth insights and perspectives from participants.
Beyond academic research, semi-structured interviews are also widely used in recruitment or in field studies where multiple interviewers work within the same theoretical framework. This approach enables researchers to explore the same core research questions while remaining flexible enough to pursue different themes, perspectives, or areas of interest as they emerge during the conversation.
The three other common interview formats are:
- Structured interviews: All questions are planned in advance, including their wording and order.
- Unstructured interviews: There are no predetermined questions, allowing the conversation to develop naturally.
- Focus group interviews: Questions are asked to a group of participants rather than to a single individual.
Table of contents
- What is a semi-structured interview?
- When to use a semi-structured interview
- Advantages of semi-structured interviews
- Disadvantages of semi-structured interviews
- Semi-structured interview questions
- How to conduct a semi-structured interview
- How to analyze a semi-structured interview
- Presenting your interview results
- Frequently asked questions
What is a semi-structured interview?
Semi-structured interviews combine elements of both structured and unstructured interviews.
- Unlike unstructured interviews, they are guided by a predefined set of topics or questions.
- Unlike structured interviews, the wording, sequence, and follow-up questions are not fixed, giving interviewers the flexibility to adapt the conversation as it unfolds.
Because semi-structured interviews typically use open-ended questions, they allow participants or job candidates to share detailed insights and perspectives. While structured interviews make it easier to compare responses across interviewees, their rigid format can limit the depth of information collected.
Semi-structured interviews strike a balance between consistency and flexibility, enabling researchers and recruiters to identify patterns across interviews while still exploring unexpected themes and ideas.
When to use a semi-structured interview
Semi-structured interviews are particularly useful when:
- You’re conducting exploratory research. Participants’ responses can reveal new themes, perspectives, and areas of interest, helping to shape future research questions and directions.
- You have prior interviewing experience. Because semi-structured interviews allow for spontaneous follow-up questions, they require strong interviewing skills. Less experienced interviewers may unintentionally ask leading questions or influence participants’ responses.
- You’re interviewing people for a role. Semi-structured interviews allow you to maintain a consistent set of core questions while still adapting your follow-ups to better assess a candidate’s skills, experience, and fit for the position. It also allows you to discuss information from their cover letter, resume, or letter of interest.
It’s also important to have a reliable system for recording and organizing participant responses. Keeping detailed and well-structured records will make it easier to identify patterns, compare findings, and analyze the data effectively later in the research process.
Differences between different types of interviews
It’s important to choose the type of interview that suits your research best. This table shows the most important differences between the four types.
| Structured interview | Semi-structured interview | Unstructured interview | Focus group | |
|---|---|---|---|---|
| Fixed questions | ||||
| Fixed order of questions | ||||
| Fixed number of questions | ||||
| Option to ask additional questions |
Advantages of semi-structured interviews
Semi-structured interviews have many advantages, as they combine some of the best elements from both structured and unstructured interviews.
One of the main advantages is the lack of distraction throughout the interview. The thematic framework beforehand keeps both the interviewer and interviewee on track, while it also allows for spontaneous follow-ups.
This type of interview also allows for a lot of detail in answers due to the open-ended nature of the questions. Participants can elaborate, clarify, or change their answers if they like.
Disadvantages of semi-structured interviews
Like any other type of interview, semi-structured interviews also come with disadvantages.
The flexibility of the interview can decrease its validity. It becomes harder to compare responses between participants, especially when the interviewer asked many follow-up questions.
Another disadvantage of semi-structured interviews is the high risk of research bias. It’s easy to ask leading questions, which can result in observer bias. Besides, as with any type of interview, participants tend to answer questions in a way that makes them look good, kind, or fair. This can lead to social desirability bias.
Semi-structured interview questions
Because semi-structured interviews are often open-ended, it can be challenging to design questions that elicit the information you need without introducing bias. The following tips can help:
- Define your focus areas in advance. Identify the key topics you want to explore before the interview. This will help you build a structured framework of questions that stays aligned with your research goals. For example, for a job interview, you can look at the candidate’s LinkedIn summary or portfolio presentation to identify focus areas.
- Prepare an interview guide. Use a guide during the interview to stay on track. It can also help to begin with simpler questions to build rapport, before moving on to more complex or sensitive topics.
- Keep questions clear and concise. Avoid jargon, overly complex wording, and compound questions to ensure participants understand what is being asked and can respond accurately.
- Can you walk me through your CV and highlight the experiences most relevant to this role?
- What motivated you to apply for this position?
- Which past role has prepared you best for this job, and why?
Skills and expertise
- Can you describe a project where you used [relevant soft skill or hard skill, like data analysis, project management, coding]?
- What tools or methods do you typically use in your work?
- How do you stay up to date with developments in your field?
Problem-solving and behavior
- Tell me about a time you faced a challenge at work and how you handled it.
- Can you give an example of when you had to work under pressure or tight deadlines?
- Describe a situation where you disagreed with a colleague. How did you resolve it?
Teamwork and communication
- How do you typically collaborate with team members or stakeholders?
- Can you give an example of a successful team project you were part of?
- How do you handle feedback, especially when it is critical?
These questions are open-ended and flexible, allowing the interviewer to ask follow-up questions based on the candidate’s responses while still maintaining a consistent structure across interviews.
How to conduct a semi-structured interview
Once you’ve determined that a semi-structured interview is the right fit for your research topic or recruitment protocol, you can start with the following steps.
Step 1: Setting goals and objectives
You can use guiding questions to help you conceptualize your research design, such as:
- What are you trying to learn or achieve through the semi-structured interview?
- Why are you choosing a semi-structured interview instead of another interview format or research method?
- Which questions or topics do you anticipate will require follow-up questions during the interview?
If you decide to proceed with a semi-structured interview, you can then begin developing your interview questions.
Step 2: Designing your questions
Try to keep your questions simple, concise, and clearly worded. If your topic is sensitive or may trigger an emotional response, choose your wording carefully to avoid causing distress.
One of the more challenging aspects of semi-structured interviews is deciding when to ask follow-up or spontaneous questions. For this reason, it is important to have an interview guide to refer to throughout the process. It can also help to anticipate possible follow-up questions in advance by considering how participants might respond to your initial questions.
This is especially important when interviewing candidates for a job position. You want to make sure the interviews are comparable to reduce bias.
I am designing a semi-structured interview for a research project. Please act as an experienced qualitative researcher and interview design expert.
Topic: [Insert topic]
Research objective: [Insert what you want to learn]
Research questions:
- Question 1
- Question 2
- Question 3
Target participants: [Describe who you are interviewing, including characteristics like age and background]
Interview length: [Insert duration in minutes]
Task:
Create a semi-structured interview guide that follows qualitative research best practices.
For each interview section, state the purpose of the section, provide primary interview questions, optional follow-up probes, and explain what insights each question is intended to uncover.
Create open-ended questions, with neutral wording, that encourage storytelling and examples. They should explore motivations, experiences, perceptions, and behaviors.
Ensure questions are non-leading, non-judgmental, easy to understand, free from assumptions and bias, and ordered logically from broad to specific.
Finally, provide:
- A concise interview guide.
- A more in-depth version with additional probes.
Step 3: Assembling your participants or candidates
There are several sampling methods you can use to recruit participants for interviews, including:
- Stratified sampling: Selecting participants based on a specific characteristic relevant to your research, such as age, race, ethnicity, or gender identity.
- Voluntary response sampling: For example, sending an email to a campus mailing list and recruiting participants from those who choose to respond.
- Convenience sampling: Recruiting individuals who are easily accessible, such as other students at your university.
You should always be careful of sampling bias, which can occur when some members of the population have a higher chance to be included in the research than others.
Regardless of the approach, it is important to ensure that the selection process is fair and structured to minimize hiring bias. Using consistent criteria, standardized questions (e.g., behavioral interview questions or STAR-method questions), and clear evaluation frameworks can help ensure that candidates are assessed equitably and based on their qualifications and suitability for the role rather than subjective factors.
Step 4: Decide on your medium
It is important to decide in advance how you will conduct your interview. You should consider whether it will be carried out live or using a pen-and-paper format. If conducted in real time, you will also need to determine whether an in-person interview, a phone interview, or a videoconferencing interview is most appropriate.
Each method has its own strengths and limitations:
- Pen-and-paper interviews can be easier to organize and analyze, but they often result in more prepared responses, which may reduce the spontaneity and reliability of the data.
- In-person interviews may lead to participant nervousness or interviewer effects, where respondents feel pressure to answer in a way that is more socially desirable or pleasing to the interviewer.
- Videoconferencing interviews can sometimes feel less natural or more awkward, which may influence the flow of conversation and the quality of responses.
Regardless of the medium you choose, you should always obtain informed consent prior to beginning the interview. Participants need to consent in writing to a video or audio recording and you can ask them to sign a confidentiality agreement.
For example, the nature of the job may influence the format: roles that require strong interpersonal skills may benefit from in-person interviews, while remote or technical roles are often well suited to phone or videoconferencing interviews.
Location is also a key consideration. If candidates are geographically dispersed, online interviews can be more practical and cost-effective. In contrast, local candidates may be invited for in-person meetings, especially in later stages.
Finally, the stage of the hiring process matters. Early screening interviews are often conducted remotely to narrow down the candidate pool efficiently, while later-stage interviews are more detailed and may take place in person to better assess fit, communication style, and role-specific competencies.
Step 5: Conducting your interviews
As you conduct your interviews, try to keep environmental conditions as consistent as possible to reduce potential bias. Pay attention to your body language (e.g., nodding, facial expressions, or raised eyebrows) and ensure that your tone of voice remains neutral and professional throughout the interview.
A key challenge in semi-structured interviews is maintaining question neutrality. This can be particularly difficult when asking spontaneous follow-up questions or responding to participants in real time, as it is easy to unintentionally influence their answers.
Similarly, one of the key challenges in job interviews is ensuring that your questions remain fair and unbiased. This can be especially difficult when asking spontaneous follow-up questions, as it is easy to unintentionally steer candidates toward certain answers or form impressions based on personal reactions rather than objective criteria.
How to analyze a semi-structured interview
After you have completed your interviews, the next step is to analyze your findings. The process looks different for research interviews and job interviews.
Analyzing interviews in research
In research, you start by assigning each participant a number or pseudonym to ensure anonymity and keep your data organized. Next, you transcribe your audio or video recordings so that you have a written record of each interview. Then, you can conduct a content analysis or thematic analysis by identifying key themes, categories, and patterns in the responses.
Transcribing interviews
Before you begin transcription, decide whether you will use verbatim or intelligent verbatim transcription.
- If elements such as pauses, laughter, or filler words (e.g., “um” or “like”) are relevant to your analysis, you should use verbatim transcription and include them in full. This is often important in research where tone, hesitation, or emotion forms part of the findings.
- If these elements are not essential to your analysis, you can use intelligent verbatim transcription instead. This approach removes filler words, corrects minor grammatical issues, and produces a cleaner transcript that is often easier to read and analyze.
Coding semi-structured interviews
Next, you conduct your thematic analysis (or, in some cases, content analysis). This process typically involves “coding” your data by labeling words, ideas, or recurring responses and grouping them into meaningful categories for deeper analysis.
Because semi-structured interviews are often open-ended, thematic analysis is usually more appropriate than content analysis. It allows you to explore patterns and meaning within the data in a more flexible way.
Start by carefully reviewing your transcripts multiple times to identify common topics, ideas, or recurring patterns. This helps you develop an initial understanding of participants’ views, knowledge, or experiences.
After this, you can begin assigning codes to segments of data. These codes provide a condensed summary of key points and make it easier to organize and compare responses.
Finally, group related codes into broader themes. Themes are more general than codes and often combine several related ideas under one concept. Once you have identified your themes, review them to ensure they accurately reflect the patterns in your data and meaningfully represent participants’ responses.
Analyzing the data
Once you have decided on your themes, you can choose to take either an inductive or a deductive approach.
- An inductive approach is more exploratory and data-driven. In this case, your themes emerge directly from the data, allowing participants’ responses to shape your findings without relying on pre-existing categories.
- A deductive approach, on the other hand, is more structured. It involves analyzing your data based on predefined themes or hypotheses to see whether the findings support or challenge your initial assumptions or theoretical framework.
Analyzing job interviews in recruitment
For job interviews, the analysis process is more focused on evaluating candidates against predefined selection criteria rather than identifying research themes. After completing the interviews, you should still organize your data by clearly labeling each candidate and documenting your notes or recordings in a structured way.
Next, review each candidate’s responses and compare them against the job requirements and competencies outlined in advance. Many organizations use scoring rubrics or evaluation forms to assess skills, experience, and behavioral indicators consistently across all applicants.
Finally, compare candidates side by side to identify strengths, weaknesses, and overall fit for the role. This helps ensure that hiring decisions are based on evidence from the interview rather than impressions alone, supporting a more objective and fair selection process.
Presenting your interview results
The last step is to report your findings. In research, you generally summarize and interpret all findings in a research paper or report.
- In the methodology section, you explain the data collection process.
- In the results section, you address the coded categories objectively, without presentation.
- In the discussion section, you interpret your findings.
- In the conclusion, you provide the key takeaways and a direction for future studies.
In many hiring processes, interviewers then take part in a debrief session. During this discussion, each interviewer shares their observations and rationale for their scores. This allows the hiring team to compare perspectives, clarify any uncertainties, and identify areas of agreement or disagreement. This is also the time where post-interview observations can be listed (e.g., receiving a thank you email after the interview).
Finally, the team synthesizes the feedback from scorecards and discussions to reach a final decision. This process helps ensure that hiring decisions are evidence-based, transparent, and less influenced by individual bias or subjective impressions.
Frequently asked questions
- How can I improve nonverbal communication in job interviews?
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Here are some tips to help you improve nonverbal communication in your next interview:
- Posture: Sit upright with shoulders back. Avoid slouching or crossed arms
- Eye contact and facial expressions: Hold eye contact naturally, nod occasionally, and smile genuinely. Match expressions to the context.
- Gestures and hands: Use open gestures and keep your hands relaxed and visible. Avoid fidgeting or crossing your arms.
- Practice tips: Record yourself in mock interviews, practice in front of a mirror, or get feedback to spot habits like tapping your fingers.
Have more questions about interview prep? Quillbot’s AI Chat can help you explore further.
- How do you write a thank you email after a Zoom interview?
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Write a thank you email after a Zoom interview by following these steps:
- Address the email to the person or people who were part of the Zoom call (e.g., the hiring manager and a potential colleague).
- Write a subject line with “Thank You” and the title of the role from the job posting (e.g., “Thank You: Financial Advisor Zoom Interview”).
- Thank the interviewer(s) for telling you more about the company and/or role.
- Mention something about the company or role you’re excited about.
- If applicable, elaborate on one of your interview responses, or mention anything you might’ve forgotten.
- Reiterate your main hard skills, soft skills, or transferable skills (similar to the claim when you start a cover letter).
- Remind the interviewer that you’re eager to learn more about the next steps.
- Write a complimentary close (e.g., Sincerely) followed by your full name and your contact information.
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- How do you write a thank you email after a phone interview?
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Write a thank you email after a phone interview by following these steps:
- Write a subject line with “Thank You” and the title of the position from the job posting (e.g., “Thank You: Customer Service Rep Phone Interview”).
- Thank the recruiter for telling you more about the position.
- Mention something that excites you about the company or role.
- If applicable, provide more details about one of your interview responses, or mention anything you might’ve forgotten.
- Reiterate your top skills (similar to the claim in a cover letter introduction).
- Remind the recruiter that you’re eager to learn more about the next steps (e.g., a video or in-person interview).
- Write a complimentary close (e.g., “Sincerely”) followed by your full name and your contact information.
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- What is the difference between explanatory and exploratory research?
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Exploratory research is conducted to gain initial insight into a new or relatively unexplored topic or phenomenon. The information gained from exploratory research may lead to new hypotheses and direct later work.
On the other hand, explanatory research is used to investigate cause-and-effect relationships, testing hypotheses about the relationships between variables.
