IRB Ready

IRB for Qualitative Research: Interviews, Focus Groups, and Observations

By ·

Qualitative research does not map neatly onto IRB forms that were designed around quantitative study logic. Sample size justification, hypothesis statements, intervention descriptions — none of these fit naturally into an interview study. Reviewers know this, and most institutions handle qualitative protocols well, but first-time qualitative applicants still get caught by a handful of mismatches between their method and the form.

Review level for qualitative research

Most minimal-risk interview, focus group, and observational studies qualify for expedited review under 45 CFR 46.110, category 7 (research on individual or group characteristics using surveys, interviews, focus groups, or program evaluation). Some simple interview and focus group studies on non-sensitive topics with adults qualify for exempt under 45 CFR 46.104(d)(2).

If the topic is sensitive (trauma, illegal behavior, marginalized identity, intimate relationships) or the population is vulnerable (minors, prisoners, undocumented individuals), full board is more likely.

Sample size the qualitative way

Quantitative sample size justifications rest on power analysis. Qualitative justifications rest on saturation logic, information-richness, and method-specific norms (roughly 6 to 30 interviews for interpretive studies, 3 to 6 focus groups for typical topics, longer for grounded theory). State the target range, the logic, and the plan for assessing saturation during data collection.

The Qualitative Researcher has reference guidance on saturation and sample justification that is directly citable in IRB protocols. Reviewers accept saturation logic; they just need to see it stated.

Consent for interviews

Interview consent forms are mostly standard, with three qualitative-specific additions:

  • Recording. Describe audio or video recording separately. The participant should be able to consent to the interview while declining recording.
  • Quoting. State whether direct quotes may appear in publications, and describe de-identification of quotes (pseudonyms, removed institutional names, blurred demographics).
  • Follow-up. If you plan to contact participants for member checking or follow-up, describe it in the original consent.

The consent form guide has sample paragraphs for each of these.

Consent for focus groups

Focus groups have a confidentiality complication: you can promise confidentiality from the research team, but you cannot promise it from other participants. The consent form must state this explicitly. Standard language is something like: "We will keep what you share confidential. We ask other group members to do the same, but we cannot guarantee what they will share outside the group."

Focus group recruitment also raises group composition questions. If the group members know each other professionally, the loss of confidentiality among members carries more weight. Reviewers often ask about group dynamics and composition.

Consent for observation

Observational research ranges from public, non-interactive observation (usually exempt or not human subjects) to embedded participant observation (often expedited or full board). The key variables are:

  • Whether participants know they are being observed.
  • Whether identifiers are collected.
  • Whether the setting has a reasonable expectation of privacy.

For covert observation, be ready to justify it under the waiver of consent criteria at 45 CFR 46.116(f). The bar is high.

Confidentiality in small samples

Qualitative samples are small, which means indirect identifiability is the main confidentiality risk. A professor who teaches in a specific program at a specific university and has a specific gender and a specific career stage is identifiable to a small audience even with a pseudonym.

Practical mitigations to describe in the protocol:

  • Aggregate demographic reporting rather than individual-level reporting.
  • Composite case construction (combining features from multiple participants).
  • Removal of institutional and geographic identifiers.
  • Advance review of quotes with participants (member checking of anonymization).

Data management for transcripts

Audio files, transcripts, and coded data each need their own handling plan:

  • Audio: where stored, when destroyed (often after transcription is verified).
  • Transcripts: where stored, who has access, what identifiers are redacted.
  • Coded data: how codes link back to transcripts, who holds the codebook.

If you use a transcription service, describe what the service signs (confidentiality agreement), how files are transferred (secure upload, not email), and whether the service retains copies. Our data management plan template covers these specific fields.

Reflexivity, ethics, and the IRB

Qualitative researchers are often trained to reflect explicitly on power, positionality, and the relational ethics of research. The IRB is not the place for extended reflection — it is the place for operational commitments. Include what you will do, not what you are thinking about doing. Reflexivity belongs in the methods section of your eventual paper; the IRB wants commitments.

What reviewers flag most

Recurring comments on qualitative protocols:

  • No description of how recordings will be handled separately from the interview itself.
  • No acknowledgment of the focus group confidentiality limit.
  • Sample size stated without saturation logic.
  • No plan for quote de-identification.
  • Transcription service arrangements not described.

Each is a drafting fix. For the broader structure, see our protocol writing guide, and for category-specific expectations, the review categories overview.

The broader point

IRB review for qualitative research is not harder than for quantitative, but it requires translating method-native concepts into regulatory language. Once you learn the translation — saturation for power analysis, information richness for sample size, thick description for instrumentation — the review cycle runs at the same speed as any other expedited study.