How to use a personality test for hiring high-performing teams

A personality test for hiring measures a candidate's natural work preferences and behaviours so you can judge fit for the role and the team on evidence rather than instinct. Used early in the process, kept job-relevant and combined with skills assessment, it improves shortlist quality, reduces bias and predicts how someone will actually work.

Last reviewed July 2026.

Hiring often feels like a high-stakes guessing game. You review resumes, run multiple interviews and check references, yet plenty of new hires still miss expectations within six months. Usually the problem is not technical skill. It is a mismatch between how the person naturally works and what the job and team actually require. That gap is exactly what a well-designed personality test surfaces before you make the offer.

What a work personality test actually measures

The phrase 'personality test' can bring to mind abstract psychological profiles with no obvious link to the office. Work personality assessment is narrower and more useful: it maps a person's natural preferences to the activities that drive results at work, such as how they plan, decide, collaborate and respond to pressure.

Compono's research has identified eight work personalities that describe how people contribute to a team: the Doer, Auditor, Helper, Advisor, Pioneer, Campaigner, Evaluator and Coordinator. A Doer is practical and action oriented, making sure tasks get finished properly. A Pioneer is imaginative and adaptable, thriving on new ideas. Neither is better; they suit different roles and different team gaps. You can see the model in action through the free Work Personality assessment, which takes four questions and about two minutes.

The distinction from general personality tests matters. Broad trait measures like extroversion describe someone in a social context. A work personality test maps traits to work activities and team dynamics, which makes the results directly usable by hiring managers.

How to use personality tests in hiring well

The value you get depends almost entirely on how you deploy the test. Four principles cover most of it:

1. Use it early, not as a final sanity check. Assessing at the application stage lets you build the shortlist from objective fit, rather than confirming a decision you have already half made.
2. Keep it job-relevant. Define what the role and team actually need before you assess. If you are hiring for a role that demands structure and reliability, you are screening for something specific, not for a 'good personality'.
3. Combine it with skills and experience. Personality is one input alongside job fit and organisation fit. Compono Hire assesses candidates across these dimensions together so no single measure dominates the decision.
4. Never use it as a lone knock-out. Results should inform interviews and shape questions, not automatically reject people. There are no wrong personalities, only different fits.

Using personality tests legally and fairly

In Australia, personality testing in recruitment is generally lawful provided the assessment is valid, reliable and directly relevant to the requirements of the job, and is used within a broader, non-discriminatory selection process. The same principles apply in most jurisdictions: job relevance, consistency across candidates and care with how results are stored and shared.

Practical safeguards worth building in: use assessments designed and validated for the workplace, apply the same assessment to every candidate for a role, document why the measured traits matter for the job, and keep results confidential. This is general guidance rather than legal advice; if you are formalising assessment policy or operating across jurisdictions, get advice from an employment law professional.

Handled this way, testing tends to reduce legal risk rather than add to it, because it replaces subjective judgements with a consistent, defensible standard applied to everyone.

Reducing bias and building balanced teams

We all lean toward people who share our background or communication style. That might make for a pleasant lunch, but it does not predict a productive working relationship. Objective assessment levels the field: candidates are judged on fit for the work, not on their ability to charm an interviewer or their resemblance to the hiring manager.

It also changes what you hire for. A common mistake is seeking a team of identical high performers. A room full of big-picture visionaries generates ideas and no execution; a team of detail-focused perfectionists executes but struggles to adapt. Personality data lets you run a gap analysis on the existing team. Missing deadlines and disorganised workflows might point to hiring a Coordinator. A team that overlooks detail benefits from an Auditor. You are recruiting for the missing piece, not another copy of what you have.

Candidates benefit too. A short, well-designed assessment signals that you care about placing them where they will succeed, and sharing their results gives them something of value whatever the outcome. Those results then keep working after the hire: managers who know a new starter's likely blind spots can tailor onboarding and coaching from day one.

Frequently asked questions

Is it legal to use personality tests for hiring in Australia?

Generally yes, provided the test is valid, reliable and directly relevant to the requirements of the job, and forms part of a broader, non-discriminatory selection process. This is general guidance rather than legal advice, so seek professional advice for your specific situation.

Can candidates fake their answers on a personality test?

Modern work personality assessments include consistency checks that make gaming difficult. More importantly, there are no right or wrong personalities, only different fits for different roles, so candidates have little incentive to answer dishonestly.

How long does a work personality assessment take?

Compono's public Work Personality assessment is free and takes four questions and about two minutes, with results provided after you enter your details. Short formats like this keep candidate completion rates high while still producing a valid work personality result.

What is the difference between a general personality test and a work personality test?

General tests measure broad traits like extroversion in a social context. A work personality test maps traits to specific work activities and team dynamics, which makes the results directly actionable for hiring managers and HR leaders.