Personality tests are a staple of many assessment processes — but with so many different instruments available, it can be hard to know which ones are most widely used, what they actually measure, and how to interpret the results. Here is an overview of the most common personality tests used in professional selection and development contexts.
Personality tests assess relatively stable patterns in how people think, feel, and behave. In a professional context, they are used to predict things like working style, team fit, leadership potential, stress resilience, and motivational drivers. Unlike cognitive tests, there are no right or wrong answers — the aim is to build an accurate picture of who someone is, not how smart they are.
The Big Five model is the most scientifically validated personality framework and the gold standard in occupational psychology. It measures five broad dimensions:
The Big Five has strong predictive validity for job performance, particularly conscientiousness and emotional stability. Selection Lab's personality assessments are grounded in the Big Five Aspect Scales, a refined version of the model.
The MBTI is one of the most widely used personality instruments in the world, classifying people into 16 types based on four dichotomies (e.g. Introvert/Extrovert, Thinking/Feeling). While it is popular in team development and self-awareness contexts, its scientific validity for predicting job performance is limited. It is generally not recommended as a primary selection tool.
DISC assesses four behavioural styles: Dominance, Influence, Steadiness, and Conscientiousness. It is widely used in sales, leadership, and team dynamics contexts. Like MBTI, it is more suited to development and communication than to selection, due to relatively limited predictive validity.
The Hogan suite — including the HPI, Hogan Development Survey (HDS), and Motives, Values, Preferences Inventory (MVPI) — is one of the most rigorously validated assessment tools available. The HPI measures bright-side personality (normal functioning), the HDS measures dark-side tendencies (potential derailers under stress), and the MVPI measures values and motivations. It is particularly popular in leadership selection and development.
The 16PF measures sixteen primary personality factors and provides a rich, multidimensional picture of personality. It has strong scientific credentials and is used in both selection and development contexts.
Choosing the right personality test depends on your purpose, the role you are hiring for, and the scientific standards you hold yourself to. For selection purposes, instruments grounded in the Big Five with strong evidence of predictive validity are generally the most defensible choice. Want to know which personality assessments Selection Lab uses and why? Get in touch with us.
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