Q2.01.3Critical incident and episodic interviewingdesignresearch

Probing a concrete event is stronger than asking about general habits

Aliases: concrete event probe · critical incident technique · episodic interview

What it is

Episodic interviewing reconstructs a recent or specified occurrence instead of asking what someone generally does. A concrete event supplies retrieval cues about time, place, sequence, tools, people, and consequences, usually producing a more inspectable process account. It remains remembered testimony, not direct observation.

Why it happens

General answers draw on semantic self-concepts such as “I am usually organized.” A specified episode activates event memory and lets the interviewer follow interruptions, workarounds, and contradictions. Details remain reconstructive when events are old, routine, or repeatedly retold, and selecting only vivid incidents overrepresents unusual experience.

Studying it

Sample events with a defined window and rule—most recent, first, or a failure—then probe before, trigger, sequence, and outcome. Distinguish spontaneous recall from interviewer-cued content and retain uncertainty. To characterize everyday distributions, collect multiple episodes or combine interviews with diaries or logs rather than relying on one critical story.

Where it stops holding

Traumatic, sensitive, or hazardous events should not be forced into detailed retelling. Novel tasks have no prior episode; analogous experience or situated simulation may be more appropriate. Specificity is not accuracy, and timestamps, artifacts, or observation require permission before corroboration.

Applying it

  • Define the event window and selection rule so participants do not choose only memorable cases.
  • Reconstruct from the trigger, probing available information, tools, and alternative actions.
  • Confirm sequence through neutral reflection rather than supplying response options.
  • Separate recurring patterns across events from one-off anomalies and label unverifiable detail.

Related

  • Same group: Q2.01.1 Accounts versus behavior · Q2.01.2 Predicting future behavior
  • Adjacent: Q2.03 Diary studies · Q2.04 Ethnography and field observation
  • Search terms: episodic interview · critical incident technique · event reconstruction

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https://hci.top/en/handbook/Q2.01.3