Pre-Employment Assessments: 8 Types & How to Choose

Personality and the behaviour-based assessment for hiring

Personality measures read the stable patterns in how someone thinks, feels and behaves at work. The model with the strongest evidence base is the Big Five, also called the Five-Factor Model: openness, conscientiousness, extraversion, agreeableness and emotional stability. It’s the framework academic psychology keeps returning to, and it carries the strongest contemporary measurement evidence, as Soto and John (2017) set out in developing the BFI-2. The same five dimensions also recur across very different societies: Schmitt and colleagues (2007) mapped them across 56 nations.

The hiring evidence is real and specific. Barrick and Mount’s 1991 meta-analysis found that conscientiousness predicts performance across nearly every job family, and that extraversion helps in sales and management. Their 1991 work was careful to say agreeableness didn’t generalise as a predictor across the board. Where it does earn its keep is narrower: later research from Mount, Barrick and Stewart (1998) ties it to team-heavy roles where cooperation is the job. That trait-by-role pattern is exactly what a good behaviour-based hiring assessment captures.

A note on what counts as research-grade. Big Five and IPIP-NEO measures sit on a long validity record. Popular type-sorting tools, the kind that put you in a four-letter box, don’t carry the same evidence for selection, and it’s fair to say so plainly without turning anyone into a villain. If you want to feel the difference yourself, you can try the free Big Five test yourself and see how trait scores read against a type label.

Best for: understanding role fit, working style, collaboration and onboarding. Not for ranking people as better or worse, because there’s no such thing as a better personality. Use normal-range traits, never as a pass/fail gate on their own. Personality informs a hiring decision; it doesn’t define it. This is the category our own pre-employment personality test sits in, and if you want to see how it stacks up against the alternatives, you can compare the best personality tests for hiring first.

Cognitive ability and aptitude tests

These measure reasoning, learning speed and how someone handles unfamiliar information. For a long time the field treated general mental ability as the single strongest predictor of performance. The 2022 Sackett re-analysis is the reason to soften that claim: with range restriction corrected properly, the estimate came down to roughly .31. Cognitive ability still earns its place, it’s just no longer the runaway figure older sources quote.

Best for complex, fast-changing roles where the learning curve is steep and people need to absorb new material quickly. The serious watch-out is fairness: cognitive tests carry the highest adverse-impact risk of the common methods, so pair them carefully and keep clear documentation of why the role needs that level of reasoning. If you want to see the consumer end of this category, a consumer cognitive ability test shows the format candidates recognise.

Skills and job-knowledge tests

The most face-valid category, and often the most reassuring to candidates: can the person already do the task, or do they know the specific body of knowledge the role needs? A coding exercise, a writing brief, a bookkeeping problem, a language check. Nobody argues these aren’t relevant.

Best for roles with a clear technical core. The honest limit is that they measure present skill, not potential. A talented career-changer who’d grow into the role in three months can look weaker on day one than someone who’s simply done it before. Where growth and interest matter as much as current ability, pair a skills test with something forward-looking, even a career interest assessment, so you’re not mistaking a head start for a ceiling.

Situational judgement tests

A category many guides gloss over. An SJT presents realistic on-the-job dilemmas and asks what the candidate would most likely do. What it reads is judgement and interpersonal effectiveness in context, which is hard to get at any other way. Strong for customer-facing, people-heavy or values-sensitive roles, including anything that hinges on how someone handles conflict when the easy option and the right option diverge.

The catch is build quality. An SJT is only as good as the job analysis behind it. Write the scenarios from the actual work and it measures something. Buy a generic one off the shelf and it measures very little.

Integrity and honesty assessments

These look at tendencies around dependability, rule-following and counterproductive behaviour. Best suited to roles with cash handling, safety stakes or unusually high trust. They can do real work in the right place.

Framing matters more here than anywhere else. Candidates can find integrity questions intrusive, and a clumsy rollout reads as suspicion. Treat the result as one signal among several, never a verdict on someone’s character, and be ready to explain what you’re measuring and why.

Work-sample tests and job simulations

The highest-fidelity method, and one many guides under-cover. A work sample asks the candidate to perform a slice of the actual job under realistic conditions. Its strength is structural: it samples behaviour directly rather than inferring it from a questionnaire. You watch the work instead of guessing at it.

Best for almost any role you can excerpt into a short, fair task. The cost is time, for the candidate doing it and the reviewer scoring it, and the discipline it demands. Without a fixed rubric, a work sample slides straight back into opinion, which defeats the point of running one.

Structured interviews

Most teams don’t think of the interview as an assessment type. They should. A structured interview means the same questions, in the same order, scored against defined anchors, for every candidate. The evidence is consistent: structured interviews out-predict unstructured ones, one of the more durable findings to survive the 2022 re-analysis, and it’s the structure doing the work, not the interviewer’s intuition. In that re-analysis a well-built structured interview came out as the strongest single predictor of the methods examined at about .42, ahead of cognitive ability — though the authors note interview validity varies widely with build quality, which is why the structure, not the format, is what does the work.

Best for every hire, because it’s the cheapest validity upgrade most teams can make. You don’t need new software to start, just a fixed question set and a rating scale. The one condition: you have to actually score it. Notes and vibes aren’t structure.

Physical and role-specific tests

Last, the category that needs the heaviest legal care. Physical and role-specific tests measure capacities genuinely required to perform the job: lifting, stamina, vision, a sensory or functional requirement the work actually depends on.

Best for safety-critical and physically demanding roles. These carry the highest ADA exposure, and the rules on timing and demonstrable job-relevance are strict. You have to be able to document why each requirement is essential, which is covered in the legal section below.