How To Design & Conduct Interviews for Qualitative Research

Explore why interviewing matters in qualitative research, gaining depth, clarifying beliefs, diversifying perspectives, and triangulating data to build a complete, reliable understanding.

Learn when to schedule interviews in qualitative research, at the beginning, middle, or end, based on study length and purpose, including follow-ups and targeting anomalies to enrich data.

Interviews yield in-depth perspectives and data triangulation, but require careful scheduling and transcription time; online or in-person formats give voice to participants and boost validity.

Define the structured interview by predefining all questions, asking them in the same order, and limiting probing to ensure consistency and reduce bias across interviewers.

Compare the semi-structured interview with the structured one, noting a preplanned protocol, the ability to probe and ask follow-ups, and the freedom to reorder questions for in-the-moment dialogue.

Explore the unstructured interview, where researchers prioritize conversation over fixed questions, use extensive probing and listening to follow up on your research study, redirect topics, and often conduct multiple interviews.

Use focus groups of four to eight participants for 30–45 minutes at any study stage, guided by prompts, with video recording, noting advantages and non-generalizability.

Use interviews as one data source alongside surveys and observations to triangulate findings and strengthen validity, then plan number, duration (15–60 minutes), and timing (beginning, middle, end) per your study.

Explore how interviews can serve as the sole data source in qualitative research, achieve data saturation, determine sample size, and plan interview length and follow-ups.

Decide between single interviews and multiple interviews based on your research question and data saturation needs. Weigh access, time zones, and follow ups for longitudinal insights.

Group participants by study-relevant characteristics, define constructs such as super users and average users, then apply random or purposeful sampling within groups to ensure balanced sizes and data saturation.

Clarify your purpose to design successful qualitative interviews by identifying 1–5 interview objectives, such as participant background or motivations, and then craft questions that address those objectives.

Write clear, open-ended interview questions one at a time to invite detail. Prepare in advance for structured or semi structured formats, highlight nonnegotiables, use follow-ups and a closing recap.

Choose a private, comfortable interview space aligned with participants and context, balancing privacy, noise level, and potential interruptions; ask participants for preferences and adapt location accordingly.

Outline practical strategies for interviewing children and teens, including preparing them, setting expectations, building comfort across multiple interviews, and encouraging topic preparation and awareness of impact.

Keep your words to a minimum and let the interviewee take the lead; focus on asking essential questions, use thoughtful follow-ups, and summarize to confirm understanding.

Bring relevant artifacts to interviews to deepen understanding of participants' thinking. Align artifacts - pictures, surveys, transcripts, maps, or student work - with the interview purpose to elicit richer insights.

Balance note-taking with active interviewing by recording interviews and jotting selective notes. Learn what to write, when to timestamp moments, and how to transcribe effectively.

Use clarifying questions and active listening—including follow-up questions—to gain clarity, dig deeper into responses, and identify critical interview issues while building trust and understanding the interview’s purpose.