How to Assess Candidates Before an Interview

Key takeaways

• Pre-interview assessment saves interview time by surfacing fit issues before scheduling a call.
• The best timing is right after an initial resume or application screen.
• Keep it short — one or two focused assessments, not a long battery.
• Results should shape interview questions, not replace the interview.
• Candidates generally accept a short assessment well when it is clearly tied to the role.

Why assess before the interview

Interview time is limited and expensive — for both the hiring team and the candidate. Assessing before the interview means you walk in already knowing where a candidate is strong and where you need to dig deeper, instead of spending the first fifteen minutes establishing basics an assessment could have covered in advance.

It also filters more fairly than a resume skim. A candidate with a non-traditional background can demonstrate the actual ability an assessment measures, even if their resume does not obviously signal it.

How to set it up

1. Pick one or two assessments tied directly to the role’s most critical abilities.
2. Send the invitation right after the initial screen, before scheduling the first interview.
3. Set a reasonable deadline, typically 48–72 hours, to keep the pipeline moving.
4. Review results as a team before the interview, not during it.
5. Prepare two or three follow-up questions based on any moderate or lower-scoring areas.

Examples

A staffing agency screening candidates for a client sends a general cognitive ability assessment immediately after the initial application, so only candidates who clear a baseline move to a recruiter call — saving significant recruiter time on high application volumes.

A startup hiring its first customer support hire sends a short communication skills assessment before the first call, then opens the interview by discussing a specific response the candidate gave.

Assessments to use

• General Cognitive Ability — a broad baseline for reasoning across most roles.
• Attention to Detail — accuracy under detailed or competing instructions.
• Communication Skills — written and verbal clarity, useful for almost any role.

Browse the full assessment library →

Role-specific considerations

The right pre-interview assessment depends on the role’s biggest risk area — accuracy, communication, reasoning, or a specific technical skill. See our role guides for a starting combination by position.

Connecting results to the interview

Open the interview with a question tied to the assessment result, not a generic warm-up. If a candidate scored strong on communication but moderate on a technical dimension, spend more interview time verifying the technical area with a specific scenario.

Common mistakes

• Sending a long assessment before the first interview, which increases candidate drop-off at the top of the funnel.
• Not reviewing results before the interview, wasting the point of assessing early.
• Auto-rejecting on a single moderate score without any human review.
• Assessing after the interview instead of before, missing the chance to inform interview questions.

Frequently asked questions

How long should a pre-interview assessment take?

Ten to twenty minutes total is usually the right range — long enough for real signal, short enough to protect completion rates.

Will candidates drop off if I assess before the interview?

Some will, but a short, clearly-explained assessment tied to the role is generally well accepted, especially compared to a long unpaid take-home project.

Should I tell candidates why they are being assessed?

Yes. A short note explaining that results help focus the interview improves both completion rates and candidate experience.

Can I skip the assessment for referred candidates?

You can, but doing so inconsistently undermines the fairness and comparability the assessment is meant to provide.

What if a strong candidate scores poorly on one dimension?

Use it as an interview topic rather than a disqualifier — ask them to walk through their approach and judge the response directly.

A note on methodology

This guide reflects common, widely-used hiring practice rather than a single proprietary study. For details on how our own assessments are built and scored, see our assessment approach.