Personality Assessments in Hiring: What's Safe and What Isn't

The short answer

Personality insight is genuinely useful in hiring — for structuring interviews, preparing onboarding, and understanding how someone will work with the team they are joining. It is not useful, and in many places not lawful, as a filter that decides who gets the job.

The line is simpler than it looks: use it to understand candidates, never to screen them.

This is general guidance, not legal advice. Employment law varies by country, state and role, and your own counsel is the authority on what you may do.

Uses that hold up

Structuring the interview. Knowing a candidate leans deliberate rather than fast tells you to send the case question in advance, so you assess their thinking rather than their improvisation.

Preparing onboarding. Where will this person's defaults rub against the team's? Answer it in week one instead of month six.

Manager preparation. How to give this person feedback, how much context they need, what will cause them to go quiet.

Team composition conversations — held openly, with the team, about how work gets handed off. Not about who to remove.

Uses that create risk

• Scoring or ranking candidates on a personality result.
• Rejecting anyone because of a "fit" score.
• Anything that functions as a health or mental-health inquiry before an offer.
• Using results in promotion, discipline or termination decisions.
• Running an assessment without telling candidates what it is, what it is used for, and how long the data is kept.

Assessments used as selection tools are held to a much higher standard than most employers realise: they need to be job-related, consistently applied, and defensible if a rejected candidate challenges them.

Practical rules for a hiring team

1. Same process for every candidate in a role. Inconsistency is where most challenges start.
2. Never make it a gate. If a result can eliminate someone, it is selection, whatever you call it internally.
3. Tell candidates plainly what is collected, why, and how to decline without penalty.
4. Keep it out of the hiring record where your policy allows, and keep retention short.
5. Write down the decision reasons separately — skills, evidence, references. If the personality material vanished, the decision should still stand on its own.
6. Ask your counsel before it touches any employment decision, especially across jurisdictions.

Where EQIQs sits

EQIQs™ is decision-support. It is built to help two people work together well, and it should not be the sole basis for hiring, promotion, discipline or termination decisions.

Where to start

For a view of how a candidate is likely to work with a specific team rather than a score to rank them by, see the hiring compatibility score. For teams already in place, the team chemistry check is the more useful starting point.