In-depth interviews (IDI) in a thesis: interview guide, fieldwork and analysis
An individual in-depth interview allows you to learn about experiences and how to understand a phenomenon, but it is not a free conversation without a plan. It requires a deliberate selection of participants, a flexible scenario, informed consent and a transparent way of analyzing the material.
Key information
- ✓The script should sort the topics out, not force the answers.
- ✓Before recording, seek the participant's informed consent.
- ✓Keep the transcript anonymous from the start.
- ✓Basing your results on categories and patterns, not single quotes.
Selection of interlocutors and ethics
Select people who have experience relevant to the research question, provide information about the purpose, the willingness to participate, how to use the recording and the possibility to withdraw, and the scope of consent and data retention should be consistent with the university's guidelines.
Interview scenario
Start with simple, descriptive questions, then move on to experiences, assessments, and examples. Questions should be open and neutral. In-depth questions, such as asking for an example or explanation, help develop an answer without suggesting a position.
Implementation and transcription
During the conversation, listen, check the timing, and note down the threads that need to be returned. Transcription should match the accepted level of accuracy. Replace names, companies, locations, and other identifiers with neutral labels.
Coding and presentation of results
First, read the whole material, then mark the passages that correspond to your research problems, and then categorize them. Compare the statements, look for patterns and exceptions. Choose quotes as illustrations of the analysis, not as the only evidence.
Summary
The value of IDI comes from combining an open conversation with systematic analysis. Transparent documentation, neutral conduct and anonymisation allow rich material to be used without violating participants' rights.
Frequently asked questions
How many IDI interviews do you have to do?
The number depends on the group differentiation, the scope of the problem and the saturation of the material.The decision should be methodologically justified and consulted with supervisor.
Need support with your work?
Describe the topic, scope and deadline. We will review the materials, recommend the right support and prepare a clear quote.
