How Long Do Interviewers Really Take to Decide? What the Research Says
Quick answer: Interviewers do form an early view, but the popular claim that they decide within 90 seconds is not backed by reliable research. The best study I could trace found that most interviewers reach their decision within the first 15 minutes, and only a small minority decide in the first minute. Early impressions are real and fast. They are also often wrong, which is why structured interviews beat gut feel.
Search for “how fast do interviewers decide” and you will find a figure about 90 seconds almost everywhere. It traces back to a 2014 infographic that cited surveys from two recruitment firms without naming the studies or their methods. That doesn’t mean it’s false, but it means you shouldn’t plan your interview around it.
What the best evidence says about timing
The most specific study I could find was published in the Journal of Occupational and Organizational Psychology (DOI 10.1111/joop.12118). It surveyed 166 interviewers and almost 700 students applying for real jobs at a US university, with interviews of around 30 minutes.
| When interviewers decided | Share of interviewers |
|---|---|
| Within the first minute | 5% |
| Within the first five minutes | About 26% |
| Within the first 15 minutes | 60% |
| After 15 minutes, or after the interview ended | 40% |
Two things to keep in mind. The article reporting these numbers doesn’t name the authors, and the study describes the interviewers’ own recollections rather than a timed observation. Treat it as a useful signal, not a precise measurement. Even so, it points the same way as everything else: a large share of the decision is made late, after the interviewer has heard the candidate’s answers.
Why first impressions form so fast
Psychologists have studied snap judgments for decades. Nalini Ambady of Tufts University is best known for “thin-slice” research, which asks how much a stranger can tell from a very brief sample of behavior. In one study described in a Psychology Today article, untrained observers watched 20 to 32 second videos of job applicants greeting interviewers. Their ratings of traits such as self-assurance and likability were close to those of trained interviewers who had spent at least 20 minutes with each applicant.
That is a striking result, and it explains why the first minute matters. People are good at reading energy, warmth and confidence quickly. They are much less reliable at predicting how well someone will do the job, which is the thing an interview is supposed to measure.
The problem with going on instinct
A first impression is a summary of how someone comes across, not evidence of what they can do. Two candidates can leave the same impression and have very different skills. A confident, fluent speaker can outperform a quieter candidate who knows the work far better, and the interviewer may not notice the difference until much later.
This is the core reason research favours structure. A structured interview asks every candidate the same job-related questions, in the same order, and scores each answer against a predefined rubric. A review by Levashina and colleagues in Personnel Psychology sets out what is known about structured interviews and where the open questions remain. It is the best place to start if you want the evidence in full.
What candidates can actually control
You can’t control how quickly an interviewer forms a view, but you can make the early part of the interview work in your favour:
- Open with a clear, concrete summary. A two-sentence answer to “tell me about yourself” that names your current role and what you’re looking for gives the interviewer something to hold onto.
- Bring evidence, not adjectives. “I cut onboarding time from six weeks to three” does more work than “I’m very organised”, because it survives the interviewer’s later scrutiny.
- Answer the question that was asked. Early impressions often turn on whether a candidate listens. A focused answer beats a long one that wanders.
- Stay engaged after the first few minutes. If the interviewer hasn’t decided by minute 15, which most haven’t, a strong finish matters as much as a strong start.
Our interview checklist for candidates covers the preparation side in more detail.
What employers should do with this
If most interviewers decide by the end of the interview, the interview itself is where the decision gets made, which makes its design matter. Three practical steps follow from the research:
- Use the same questions for every candidate. It makes comparison fair and reduces the influence of who made the better first impression.
- Score answers against a rubric before discussing them. Writing scores down before the debrief stops the first impression from setting the agenda.
- Train interviewers to notice their own speed. If someone is reaching a verdict in the first minute, they are probably reacting to the candidate’s manner rather than the evidence.
Structure also shapes how candidates see you. If you’re rebuilding how you interview, our guide to employer branding covers how the candidate experience fits into the wider picture.
Why we’re not repeating the 90-second figure
The number is easy to remember and easy to repeat, which is exactly why it spread. But a figure that can’t be traced to a named study with a stated method is not something to build advice on. If you see a precise statistic about interviews, check where it came from before you use it, and be wary of any source that gives percentages without a sample size or a publication.
Frequently asked questions
Do interviewers really decide in 90 seconds?
Not according to the best evidence available. A study of 166 interviewers found that 5% decided within the first minute and about 60% within 15 minutes. The popular 90-second figure traces back to an infographic that didn’t name its underlying surveys.
How quickly do people form first impressions?
Very quickly. Studies on “thin slices” of behavior find that observers can form ratings of traits such as confidence and likability from clips of 20 to 30 seconds, with results close to those of people who spent far longer with the candidate.
Are first impressions accurate in interviews?
They capture how a candidate comes across, which matters, but they are weak predictors of job performance on their own. A structured interview, with consistent questions and scored answers, is a much better guide.
What is a structured interview?
An interview where every candidate is asked the same job-related questions and answers are scored against a predefined rubric. Research consistently links this approach to better predictions of job performance than unstructured conversation.
