Psychometric tests: an effective tool used by 75% of leading companies

Psychometric tests gather information on a candidate’s or employee’s cognitive abilities, interpersonal skills, critical thinking, or results orientation. This data contributes to drawing a general picture of the person being tested.

Intelligence, aptitude, and personality tests have become a cornerstone in corporate settings, with 75% of Fortune 500 companies using them to hire talent and assess employees (source: The Malta Independent).

But when did psycho-tests originate, and how do they work? In this article, we will explore the history of psychometric testing assessments, defining what they are and highlighting their key characteristics. 

We will also discuss the different types that exist, their pros and cons, and the reasons why recruiters and employers rely on them to evaluate candidates and employees. 

Additionally, we will cover the opportunities and challenges that artificial intelligence presents and will provide you with useful tips to conduct these tests.

What is a psychometric test?

A psychometric test measures an individual’s psychological abilities and produces a numerical result. 

For a better interpretation, companies utilize psychometric test conversion tables to transform raw scores into standardized results. 

Recruitment agencies and HR departments commonly use these tests to gather information about applicants’ or employees´ psychological traits and make informed decisions. 

The objectives of these tests are the following:

• Identify abilities, aptitudes, competencies, values, traits, likes, and dislikes. 
• Detect potential and limitations.
• Screen the most suitable candidates and those who best fit the culture and philosophy of the company.
• Know performance and behavioral patterns in advance.
• Determine the outstanding competencies of each candidate.

Later in this article, we will get into more detail with regards to what recruiters and companies seek when conducting psychological assessments. But let´s first examine the origins of this type of evaluation and its earliest applications. 

Origins of psychometric tests

Psychometric testing originated in the 19th century, with roots in psychology and statistics. 

The concept was pioneered by Francis Galton, a British scientist and cousin of Charles Darwin. In the 1880s, Galton was one of the first to attempt to measure human intelligence scientifically. He developed early aptitude tests and introduced the idea that intelligence could be quantified. 

Darwin, in On the Origin of Species (1859), proposed that species evolve through the survival of the fittest, emphasizing the role of inherited traits. Inspired by his cousin´s research on natural selection and fascinated by individual differences, Galton conducted tests to gauge intelligence. 

In this way, Galton laid the ground for the development of psychometrics, currently used by employers and hiring managers in talent acquisition and retention processes across the globe. 

How does recruitment compare to natural selection? 

Metaphorically, the principles of natural selection apply to how companies seek and retain talent in today´s competitive environments. 

Hiring managers aim to select candidates with the best skills, experience, and personality traits to thrive in a given role and contribute to the success of the organization. 

Here are some examples of the similarities between recruitment and Darwin´s theory:

1. Survival of the fittest / Best fit for the role: In nature, individuals best adapted to their environment have a higher chance of survival. In recruitment, candidates who best match the job requirements, company culture, and industry demands are more likely to be hired and succeed in their roles.

2. Natural selection / Competitive hiring: In natural selection, environmental pressures determine which traits are advantageous. In recruitment, evolving environments drive companies to seek highly skilled professionals who can succeed in the competitive job market.

3. Evolution / Adaptation to change: Species evolve, with individuals possessing the most suitable traits being the ones that prosper. Similarly, employees must adapt to changing workplace demands to remain competitive and valuable. 

By incorporating intelligence, character, and aptitude assessments into their in-person or online recruitment processes, organizations can make informed decisions, ensuring that candidates not only meet the requirements of the job but also align with the company’s culture and long-term goals. 

How can businesses benefit from psychometric assessment tests?

Organizations conduct intelligence, personality, and skills tests as part of their strategy to measure and predict key indicators such as:

• Individual and collective performance.
• Time required to reach full competence.
• Employee engagement and turnover.
• Need for training.

Psychometric tests help compare candidates and employees against a standardized benchmark, identifying those likely to perform better. 

High-performing employees are often more efficient, require less training, and contribute more creatively and effectively to their roles. As a result, they help reduce costs associated with turnover, extended onboarding, and ongoing training. 

Investing in intelligence, aptitude, and personality assessments to identify the right talent translates into long-term savings and improved financial outcomes for organizations. 

Psychometric tests classification

It is important that employers and hiring managers have a clear understanding of the organization’s needs to make a complete and unambiguous analysis when interpreting the results produced by psychometric testing assessments.

There are no good or bad tests, no right or wrong answers. What is relevant is the result and whether those chosen individuals are the most in line with the company’s standards.

The classification of psychometric tests varies according to what they are intended to measure:

1. Intelligence
2. Aptitudes and skills
3. Personality

Let´s examine them more closely.

Intelligence

Psychometric intelligence tests quantify several pieces of information: 

• IQ (intelligence quotient).
• Learning capacity.
• The application of new knowledge.
• Initiative and synthesis analysis.
• Decision-making capacity and facility.
• Capacity and proactivity in problem-solving.
• Adaptation to changes.

Below are some popular intelligence assessments:

• Raven´s Progressive Matrices (RPM) evaluate non-verbal cognitive abilities – critical for workplace performance – focusing on skills that predict adaptability, problem-solving, and learning potential. 
• The Terman-Merrill test measures several key aspects of cognitive abilities and intelligence that are relevant to workplace performance.
• The Wechsler Adult Intelligence Scale (WAIS) evaluates various cognitive abilities and intelligence domains that are highly relevant to workplace performance.

Aptitudes and skills

Psychometric tests of aptitudes and skills judge: 

• Job skills and competencies.
• Potential for professional development.

Here are some of the most popular competencies and leadership assessment tests nowadays:

• The Hogan Leadership Forecast Series differentiates three core aspects of personality that are crucial for leadership performance: bright side of personality, dark side of personality, and inside of personality. 
• The Korn Ferry tests measure several key aspects of leadership potential and performance, such as competencies, experiences, traits, and drivers.
• The DISC assessment evaluates four core aspects of personality and behavior that are relevant to leadership: dominance, influence, steadiness, and conscientiousness.
• Kouzes and Posner’s Leadership Practices Inventory (LPI) measures five core practices of exemplary leadership, each comprising six specific behaviors. 
• CliftonStrengths assessment determines an individual’s natural talents, strengths, and patterns of thinking, feeling, and behaving. Specifically, it evaluates 34 talent themes, categorized into four domains. 
• The Wonderlic test measures the cognitive ability and problem-solving aptitude of prospective employees for a range of occupations. The most representative ones are:

Personality

Psychometric tests aim to assess applicants’ ability to:

• Interpret situations.
• Adapt.
• Relate.
• Handle internal conflicts. 
• Develop social skills.

Below, you will find some common psychometric assessments related to personality: 

• The Big Five Personality Traits Test, also referred to as the five-factor model of personality, measures openness to new experiences, conscientiousness, extraversion, agreeableness, and emotional stability. 
• The Sixteen Personality Factor Questionnaire (16PF) evaluates 16 traits – such as emotional stability, vigilance, openness to change, or social boldness – by asking questions about different situations.
• The Occupational Personality Questionnaire (OPQ32) measures 32 characteristics to determine how traits affect job performance. It is based on selecting the most and least similar options to the applicant’s personality. 
• The Situational Judgement Test determines behavioral tendencies by assessing how a candidate or employee might behave in specific situations.
• The Myers-Briggs Type Indicator Test measures four core dimensions of personality: extraversion vs. introversion, sensing vs. intuition, thinking vs. feeling, and judging vs. perceiving. 
• The Caliper Profile Test measures a comprehensive set of personality traits, motivations, and cognitive abilities relevant to job performance.

These are just examples of intelligence, aptitude, and character assessments that candidates and employers conduct to evaluate new hires and employees. 

While psycho-tests may vary across companies, as organizations employ the ones that suit their needs best, they have become an essential tool in the corporate world to evaluate both new hires and existing employees.

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Benefits of psychometric tests

Below, you will find the advantages of employing cognitive intelligence, aptitude, and personality tests in the workplace:

Objective evaluation

Psychometric tests provide a standardized approach to assessing candidates, ensuring hiring decisions are based on reliable data rather than subjective impressions. 

This leads to a more consistent evaluation process, minimizing biases that can often influence recruitment decisions. 

Efficient recruitment processes

By using psychometric testing assessments, employers can quickly identify the most qualified candidates, allowing them to streamline the hiring process.

This can significantly reduce time and resources spent on hiring, making the process more efficient.

Reduced turnover

Cognitive, aptitude, and personality assessments reduce the risk of hiring less suitable candidates by offering data-driven insights that can help identify potential flight risks.

More informed hiring decisions result in better employee performance and higher job satisfaction, reducing turnover rates. 

By ensuring that candidates are well-matched to the roles and company cultures, psychometric tests contribute to long-term organizational success and improved retention.

Challenges of psychometric assessment tests

Like any other tests, psychometric assessments present some challenges that should be taken into account. These include, but are not limited to, biases and ethical concerns. 

Reliability

Intelligence, personality, or aptitude evaluation methods that are not fully reliable can produce inconsistent results, leading to incorrect conclusions. 

Limitations

Most psycho-tests follow a structured formula, limiting the information recruiters and employers can extract from them. For example, valuable traits like creativity are difficult to evaluate with just a few standard questions. 

Since no test can reflect an employee´s full potential, many small and medium-sized companies decide to rely on more traditional hiring methods, such as plain interviews. 

Biases

Psychometric assessments can be biased towards those who are familiar with the tests, favoring them over those who have never been exposed to such evaluations before. 

Also, different countries may prioritize certain traits over others. In today´s globalized world, standardized cognitive, aptitude, or character tests can sometimes benefit individuals from specific cultural backgrounds over the rest.

Language can also be a barrier when completing these assessments, as well as the test structure. 

Because psycho-tests are designed with neurotypical people in mind, neurodivergent participants might obtain lower scores because of their distinctive way of thinking. 

Skepticism

Some employers and recruiters might not understand the potential of these types of assessments and may be hesitant to use psychometric or psycho-technical tests in job interviews and retention processes. 

These two assessments are often combined for a better evaluation of candidates and employees.

Despite the skepticism, the Society for Human Resource Management (SHRM) found that companies that use psychometric tests experience a 24% increase in employee performance compared to those that don´t. 

Ethical concerns

Intelligence, aptitude, and character evaluation tests can have a significant impact on people´s lives. For instance, they may be used to determine if a candidate gets hired during a selection process, or the results could be disclosed due to malpractice. 

Therefore, recruiters and employers must take ethical considerations into account. These include obtaining consent before conducting the test and ensuring confidentiality regarding the results. 

In order to mitigate risks related to data protection, organizations must adhere to relevant digital privacy laws and regulations. Additionally, they should verify that any third-party test providers they engage with are also compliant with these standards.

Can AI enhance psychometric tests?

The surge of artificial intelligence has opened the door to enhanced psycho-tests in the workplace.

With the advancement of technologies like natural language processing, machine learning algorithms, and data analytics, artificial intelligence is sure to revolutionize recruitment as we know it. 

AI has the potential to enhance tests in terms of accuracy, efficiency, biases, and reporting. Despite the multiple advantages, digital responsibility remains a challenge. 

Hiring managers and employers must ensure that AI-powered psycho-assessments are conducted responsibly, protecting candidate and employee data and maintaining ethical standards throughout the process. 

Tips for improving performance on psychometric tests

The performance of psychometric tests by HR departments and recruitment agencies can benefit from the implementation of a series of tips shown below:

Test environment

One way to improve performance on psychometric tests is to ensure that the testing environment is calm and comfortable. 

This applies whether the test is taken face-to-face or online. By following these tips, applicants can achieve maximum concentration and improve their test results. 

Limit the completion time

Control the duration of the psychometric test to prevent the applicant from becoming exhausted. 

It is crucial to maintain an optimal concentration level from start to finish to ensure accurate results without distortions caused by fatigue.

Combine tests

Combining multiple psychometric tests allows for a comprehensive assessment of applicants, analyzing their performance in various competencies related to the job. 

Design the tests accordingly

To design and write a psychometric test, the HR department or recruitment agency in charge must first identify the needs to be covered. 

Good design and wording can help identify the best candidates for recruitment.

The language used should be simple and accessible to a broad audience, avoiding jargon and technical terms. The text should be grammatically correct, with short, straightforward sentences in the active voice.

Proctoring for psychometric tests

Currently, companies undergoing digital transformation are seeking new control systems to ensure their assessments are carried out with complete honesty and respect for security. 

SMOWL’s proctoring plans for personnel selection and recruitment processes guarantee that security protocols are respected and that tests are conducted with fraud and malpractice controls.  

We encourage you to request a free, no-obligation demo with 25 complimentary licenses.

Updated on 10/09/2026