The short answer
A structured interview is an interview in which every candidate is asked the same job-related questions in the same order, and every answer is rated on the same scale against standards the interviewers agreed on in advance. The U.S. Office of Personnel Management describes it as an assessment method that measures job-related competencies by asking about past behavior or proposed behavior in hypothetical situations. It matters because structure makes ratings more consistent and more predictive of job performance than a free-form conversation.
The structured interview explained
OPM's guide lists three features that separate it from an unstructured interview: the same questions in the same order, a common rating scale, and interviewers who agree on what an acceptable answer looks like. Building one follows a clear sequence: analyze the job, pick the competencies to assess, write the questions, write rating scales, plan probes, pilot the questions, write an interviewer's guide, and document how it was built.
Questions usually come in two formats. Behavioral questions ask about past experience ("Tell me about a time you..."), often answered with the STAR method. Situational questions ask what the candidate would do in a realistic scenario. Many interviews use both.
Follow-up questions are allowed. OPM calls them probes and says interviewers should use very similar probes with every candidate, decide in advance how much to probe, and keep the meaning of a probe the same even when the wording has to fit the answer.
Example
A structured question for a customer support lead, with a short version of its rating scale:
Tell me about a time a customer escalated a problem your team had caused. What did you do, and what changed afterward?
Every candidate gets this question, and every interviewer rates it against these four anchors. For a full template, see our interview scorecard template, and for ready-made questions, our behavioral interview questions.
Structured interview vs unstructured interview
OPM's guide says research consistently shows unstructured interviews have little value in predicting job performance, with low reliability and low to moderate validity, while structured interviews have shown high reliability, validity and legal defensibility. The trade-off is preparation time. OPM's view is that the benefits outweigh that cost.
Structure also applies to automated first rounds: a fixed competency list and rubric are what make AI interview scores comparable across candidates. Tools built for that are compared in our list of structured interview software.
Related terms
- Unstructured interview: a free-form conversation with no fixed questions or shared scale.
- Behavioral interview: questions about how a candidate handled real past situations.
- Interview rubric: the anchored rating scale for each question.
- Interview scorecard: the form interviewers fill in to record ratings and notes.
- Inter-rater reliability: how closely different interviewers agree on the same answer.
- Competency-based interview: an interview organized around specific job competencies.
Questions
Can you ask follow-up questions in a structured interview?
Yes. OPM calls them probes. Plan them in advance, use very similar probes with every candidate, and keep their meaning the same even if the wording is tailored to a specific answer.
How many questions should a structured interview have?
Enough to cover each competency the job analysis says matters, which is often a handful of questions per interview. OPM's guide suggests writing more questions than you need and piloting them so you keep only the ones that work.
Is a structured interview the same as a behavioral interview?
Not exactly. A behavioral interview is one format of structured interview, built on past behavior. A structured interview can also use situational questions, and what makes it structured is the fixed questions, order and rating scale.
Want a structured first round that every candidate can take on their own schedule? Book a 20-minute demo, or try a sample AI interview.
