Psychometric tests are used by a large proportion of major employers at some stage in their hiring process, estimates suggest over 70% of FTSE 500 companies in the UK and comparable proportions among Fortune 500 companies in the US. Understanding how employers actually use these tests, what they're looking for, and how scores affect candidacy is genuinely useful information for anyone preparing for a recruitment process that includes psychometric assessment. The reality is more nuanced and more human than most candidates expect.
The Types of Psychometric Tests Used in Hiring
Employers use several distinct types, and they serve different purposes in the selection process:
- Ability and aptitude tests. These measure specific cognitive capabilities: numerical reasoning (working with numbers, graphs, and statistical data), verbal reasoning (comprehending and evaluating written arguments), abstract or inductive reasoning (identifying patterns in sequences), spatial reasoning, and situational judgement tests (evaluating responses to workplace scenarios). These are the tests with right and wrong answers and time pressure.
- Personality questionnaires. These assess stable traits, typically using Big Five-derived frameworks or occupational variants like the OPQ (Occupational Personality Questionnaire) or 16PF. There are no right or wrong answers, though some profiles are considered better fits for specific roles. Candidates who try to fake these tests are usually detectable, and most instruments include social desirability scales to identify impression management.
- Emotional intelligence and situational judgement tests. Increasingly used, particularly for roles requiring interpersonal skill or leadership. They assess how candidates interpret social and emotional situations and what responses they consider appropriate.
- Integrity and values assessments. Used particularly in roles with security requirements, financial responsibility, or access to vulnerable populations. Assess reliability, conscientiousness, and ethical orientation.
How Employers Actually Interpret Results
Test scores are almost never used as binary pass/fail thresholds, except at very early screening stages in high-volume processes. The typical use:
Screening to a shortlist. At early stages with hundreds of applicants, ability test scores may be used to reduce the candidate pool to a manageable size. This is the stage where a score below a certain level can end the process, but the threshold is usually set to identify clear outliers rather than to discriminate between candidates in the normal range.
Input for structured interview design. Personality questionnaire results and situational judgement test responses are often used to design specific interview questions. If a candidate scores low on a trait that matters for the role, the interviewer will have questions designed to probe whether the questionnaire result reflects an actual pattern or a test-context artefact.
One data point among many. Most experienced hiring managers treat psychometric results as one input alongside CV, interview performance, work samples, references, and cultural fit assessment. A strong profile across other dimensions can compensate for a less ideal psychometric result, and an excellent psychometric result doesn't override poor interview performance or weak experience.
Normed against appropriate comparison groups. Scores are compared against norm groups, typically people in similar roles or at similar career stages, rather than interpreted in absolute terms. A "high" score means high relative to the norm group, not high in some absolute sense.
What Employers Are Specifically Looking For
This varies significantly by role and seniority level. Some consistent patterns:
- Graduate and entry-level roles. Ability tests carry more weight here because work experience is limited. Numerical and verbal reasoning are the most commonly used. Personality fit for the specific role type (commercial, technical, service) is also assessed.
- Professional and specialist roles. Domain-specific ability tests become relevant alongside general ability. Personality fit to role requirements and team culture becomes more prominent.
- Leadership and management roles. Emotional intelligence, judgement, and personality dimensions related to leadership effectiveness (conscientiousness, stability, certain interpersonal traits) are typically weighted more heavily. Ability tests may still be present but are less filtering at senior levels where prior success is more informative.
The Feedback Question
Many candidates don't realise that psychometric results can sometimes be requested as feedback, particularly in more advanced selection processes. Some assessment providers and employers offer candidate feedback reports as standard; others will provide them on request. This feedback can be genuinely useful for self-understanding and for preparation for subsequent processes, regardless of the outcome of the specific application.
Receiving feedback on psychometric results and using it as one data point among many for self-understanding is one of the more underutilised career development opportunities available to candidates who've been through these processes.
Understanding your own personality profile and cognitive strengths in advance of psychometric testing, and understanding them for their own sake, is valuable regardless of the hiring context. Our free Big Five personality test gives you a detailed profile of your trait dimensions and how they map onto professional and relational contexts.
Frequently Asked Questions
Can you prepare for psychometric tests?
For ability tests, yes, practice reliably improves scores, partly through skill development and partly through reduced test anxiety and better familiarity with format. Reputable preparation resources include SHL's practice tests, publishers' official sample questions, and specialist test preparation sites. The most important preparation is timed practice under conditions that match the actual test (no calculator if the test doesn't allow it, genuine time pressure rather than untimed practice).
For personality questionnaires, the most useful "preparation" is honest self-reflection about your genuine work style. Trying to guess and fake the "right" answers is both unreliable (the instruments are designed to detect it) and counterproductive, you want a role that actually suits you.
How much do psychometric tests affect hiring decisions?
It varies enormously by employer and process design. In high-volume screening processes for graduate programmes, ability tests are often determinative at the early stage. In more senior or specialist hires, psychometric results are more likely to be one input among several and less likely to be threshold filters. Some employers weight them heavily; others use them purely as discussion generators for interviews.
Do personality tests have right answers?
No, personality questionnaires don't have right or wrong answers in the sense that ability tests do. However, different personality profiles are more and less well-suited to specific roles, and employers use these instruments to assess fit rather than absolute quality. A profile that scores as "right" for a high-pressure sales role might score as "wrong" for a detail-oriented research role, and vice versa.
What should you do if you fail a psychometric test?
For ability tests: practise and retake if the opportunity arises. The skills tested (numerical reasoning, verbal reasoning) are genuinely improvable with deliberate practice. For personality assessments: reflect on whether the role was actually a good fit, poor fit between your genuine profile and a role's requirements is useful information. And keep in mind that a single test result is not a fixed assessment of your ceiling; they're point-in-time measurements that can be improved or that may not have accurately captured your capabilities.
Are psychometric tests fair?
This is actively debated. Cognitive ability tests show consistent mean score differences across demographic groups, which raises legitimate concerns about adverse impact in selection. The research on why these differences exist and what they mean is complex and contested. Some employers monitor adverse impact statistics from their selection processes and adjust cutoff scores or test selection accordingly. The legal and ethical framework around test use varies by jurisdiction.