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Psychometric testing for recruitment and hiring

Our guide for HR professionals on what psychometric tests are and why they are important for recruiting

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clock, icon Last updated 16 March 2026

Move beyond CVs, interviews, or gut-feel. Psychometric assessments offer a data-driven scientific approach to hiring. Psychometric tests help you identify top talent with the skills, behaviours, and motivations that drive success in your organisation.

In this resource, you will delve deeper into the role and effectiveness of psychometric tests across various stages of hiring. We aim to equip you with a thorough understanding of how these tests function, why they are increasingly integrated into recruitment strategies, the advantages they bring to the table, and the types of tests available.

aptitude vs personality

What is a psychometric test in recruitment?

A psychometric test evaluates a candidate's cognitive abilities and personality traits to provide insights into their job performance, competence, and motivations. Employers use psychometric tests during hiring to objectively assess candidates and predict their suitability for specific roles. These tests are reliable, efficient, and widely used in graduate recruitment, talent acquisition, and workforce planning.

There are two general types of psychometric tests: ability tests and personality tests.

  1. Ability tests will be able to identify a candidate's level of cognitive ability. They assess, to name a few, candidates' numerical, verbal, logical, critical thinking skills.
  2. Personality questionnaires are focused on understanding the candidate's behaviours and motivations. For example are they: dilligent; goal-focused; conscientious; innovative; inquisitive...etc.

Why are psychometric tests used when hiring?

When recruiting new employees, psychometric tests provide the ultimate insight into a candidates potential, providing a meaningful and highly valid prediction of that candidates knowledge, skills, abilities and other characteristics of good job performance.

screenshot of test results

Psychometric tests are administered online by psychometric test publishers, allowing hundreds or even thousands of candidates to be tested at the click of a button. Their data is then compiled and reported automatically, saving hiring companies significant time and money by making it easy to identify top candidates. Having cognitive ability scores for all applicants before reviewing CVs, conducting telephone interviews, or using other selection methods provides a crucial advantage.

A test publisher with an intuitive results display helps you instantly narrow down the applicant pool and focus only on those with the greatest potential, saving valuable time for both you and your candidates.

Top quality psychometric tests hold no bias and are effective at testing candidates from all job levels from entry level to CEOs. Hiring companies can even create bespoke assessments that are designed specifically for their organisation tailoring the assessments for specific roles.

Benefits of psychometric testing

We've already mentioned a couple reasons why employers would use psychometric tests, here we will take a deeper look into some of the main benefits of psychometric testing for hiring companies:

1. Job performance

Psychometric tests are the most powerful and valid predictors of job performance available today and are over 14 times better at predicting job performance than the average selection interview (Hunter & Hunter, 1984). As a standardised testing method, psychometric tests offer a highly effective way of predicting how effectively a candidate will perform in their new job.

This predictive power stems from the fact that psychometric tests measure the cognitive abilities and personality traits that are directly linked to workplace effectiveness — attributes that remain consistent and stable across contexts. Where other selection methods rely on self-reported experience or situational performance, psychometric tests assess the underlying capacity to learn, adapt, and perform, giving employers a more reliable signal of long-term job success.

validity graph

2. Organisational performance

The use of psychometric tests in the workplace has been found to lead to the following workplace outcomes: increased organisational performance, increased employee retention, reduced cost per hire, decreased employee turnover, decreased absenteeism and higher levels of employee engagement/motivation. Selecting top performing candidates and ensuring a high quality workforce is imperative for any organisation and psychometric testing is the ideal mechanism for ensuring this.

3. Convenience

Psychometric testing platforms are designed to do the time-consuming parts of screening for you. Once you've set up the tests you want candidates to take, invitations go out automatically, candidates complete their assessments in their own time, and results are compiled and ready to review — all while you get on with everything else. By the time you're ready to shortlist, the data is already waiting for you.

This means you can arrive at a well-informed shortlist with the same confidence you'd have from manually reviewing every application, but in a fraction of the time. Rather than working through each CV individually, the screening happens in the background and you step in only when it matters: to review the results and make your decisions on who to progress to the next stage. This makes psychometric testing particularly well suited to pre-employment screening, high volume recruitment, and busy human resources departments.

4. Return on investment

The cost of hiring a poor performing candidate has been found to be 3.2 times the salary of the individual (Gallup International). Whereas, high-performing candidates were found to produce on average 43% more revenue than an average performing employee (Hay Group). The cost of using a psychometric testing platform, like Test Partnership, will likely save you money and result in a better performing workforce.

Given the significant salary multiples involved, even a modest improvement in the quality of hiring decisions delivers a substantial financial return. Psychometric testing provides a cost-effective way to raise the bar at the point of selection, so that the candidates who progress through the process are more likely to be genuinely high performers. Over time, the cumulative effect of consistently better hiring decisions compounds — producing a workforce that generates more value than one built on less rigorous selection methods.

validity table

5. Objectivity

Selecting employees using well-researched psychometric tests increases the fairness and objectivity of a selection process. This means that employees can be selected on merit using fair and standardised tests, rather than subjective (or biased) selection methods. Unstructured interviews are classic examples of subjective and inefficient selection tools, which may screen out high performing candidates unnecessarily. Fair, standardised, and valid selection tests are a great way to increase the fairness and objectivity of a selection process, helping organisations avoid legal disputes over unfair selection decisions.

Ready to start using psychometric tests?

clock, icon Faster hiring

Turn large applicant volumes into focused shortlists without manual CV screening.

tick, icon Better hiring decisions

Ability tests are the strongest predictor of job performance, providing essential data for better decisions.

document, icon Fairer early screening

Accessible assessments give all candidates an equal opportunity, reducing bias at the earliest stage.

cog, icon Easy to implement

Quick to set up, easy to integrate, with expert support when needed.

Book a call with our expert business psychologists to discover how psychometric tests can enhance your hiring process.

What types of psychometric tests are there?

Psychometric tests for selection and assessment can be grouped into two categories: cognitive ability tests (also known as aptitude tests) and personality tests. Cognitive ability tests are measures of cognitive ability/intelligence, and personality questionnaires measure specific personality traits such as extraversion and agreeableness.

These two psychological constructs are important in employee selection, as both show meaningful correlations with job performance. Using scientifically valid psychometric tests in hiring allows you to accurately measure these constructs, providing client companies with a reliable predictor of job performance.

Within cognitive ability tests, a variety of specific aptitudes can be measured and evaluated, using the following:

  • check, icon Numerical reasoning tests
  • check, icon Verbal reasoning tests
  • check, icon Logical reasoning tests
  • check, icon Inductive reasoning tests
  • check, icon Data analysis tests
  • check, icon Critical thinking tests
  • check, icon Mechanical reasoning tests

Personality questionnaires are even more versatile and can predict outcomes including:

  • check, icon Leadership potential
  • check, icon Learning agility
  • check, icon Success in different roles
  • check, icon Employee engagement
  • check, icon Alignmet with values
  • check, icon Sales effectiveness
  • check, icon Creativity and innovation

Other psychometric tests, such as situational judgement tests draw aspects from both cognitive ability tests and personality questionnaires. As a result, many psychologists consider these exercises to be an intermediate between cognitive ability tests and personality questionnaires.

screenshot of list of test types

When choosing which psychometric tests to use for your hiring needs, you can select from a range of test types, each designed to measure specific psychological constructs. While test publishers may offer different styles and formats, every test should accurately assess the attribute it claims to measure. Some publishers also develop unique assessments, particularly in personality testing. For example, Test Partnership offers assessments that evaluate a candidate’s suitability for remote work, emotional intelligence, and role-specific soft skills—all of which can be incorporated into your selection process to ensure you’re assessing the qualities that matter most for the role.

Due to the range of tests on the market, it is always advisable to discuss psychometric testing with an expert before deciding on the use of psychometrics in the workplace.

Never used psychometric tests? Here’s how easy it is to start

Psychometric tests can seem complex if you’ve never used them before, but with Test Partnership, the process couldn’t be easier. We turn complexity into clarity, providing expert support every step of the way. From helping you choose the right tests for your hiring needs to guiding you through our intuitive platform, we ensure a smooth experience. Sending candidate invites is effortless—whether through our platform or directly via your ATS, as we integrate with all major systems. Plus, our team is here to help you interpret results, so you can confidently make the best data-driven hiring decisions.

Choose your tests illustration

Simply create a project which contains the tests you'd like candidates to take. Choose from our library of pre-validated tests, or build your own. Any questions we're always here to give you advice.

Our platform automatically sends email invites to your candidates. Invite individually or use time-saving tools like CSV upload, public links or ATS integrations.

Easily review results in your dashboard. You can rank, review, and export results data for full data portability.

So if you're ready to add psychometric testing to your hiring process and want reliable, accurate assessments from a provider that offers expert guidance every step of the way, book a call below. Our team will answer all your questions and give you a full demo of our platform, so you can see just how easy it is to get started.

Frequently asked questions

Psychometric tests can be a useful tool for employers in the recruitment process as they are the most powerful predictor of job performance, but it is important to understand that they are not a perfect indicator of an individual's suitability for a job. The reliability of a test depends on several factors including the quality of the test and how well it has been validated. A well-designed and validated test can provide valuable information about a candidate's abilities, personality, and other characteristics that are relevant to the job in question. However, to maximise effectiveness, it should be used in conjunction with other methods of assessment such as interviews and work exercises to get a more complete picture of a candidate's qualifications.

The three types of psychometric assessments are personality tests, situational judgment tests (SJTs), and aptitude tests.

  • Personality tests: These assessments measure an individual's personality traits and characteristics, such as their emotional stability, openness, agreeableness, conscientiousness, and extraversion.
  • Situational judgment tests (SJTs): SJTs assess an individual's ability to respond to hypothetical scenarios or situations that they may encounter in the workplace. These tests measure a candidate's decision-making skills, problem-solving ability, and their capacity to prioritize tasks and handle conflicts effectively.
  • Aptitude tests: Aptitude tests evaluate an individual's cognitive abilities, such as their verbal and numerical reasoning, memory, and spatial awareness. These tests are designed to measure an individual's potential to learn and perform well in a particular job or educational setting.

Psychometric tests can measure a person's cognitive abilities, which can include intelligence (IQ). However, not all psychometric tests are designed to measure IQ specifically. IQ tests are a type of cognitive ability test that are specifically designed to measure a person's general intelligence, which is often defined as the ability to learn, understand, and reason.

Psychometric tests are an accurate predictor of performance and an essential part of a well-working recruitment strategy as they provide objective measures of cognitive abilities, personality traits, and work-related skills that can help predict a candidate's potential for success in a particular role. By using psychometric tests, employers can make more informed decisions about recruitment and selection, and tailor their training and development programs to meet individual needs.

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