Personality Tests Explained: MBTI, Big Five, OPQ32, Enneagram & More (2026)
The complete guide to every major personality framework — what each one measures, how they're used in hiring, and which test is right for your goals.
What is a Personality Test?
A personality test is a structured psychological assessment designed to measure consistent patterns in how a person thinks, feels, and behaves. Unlike aptitude tests — which assess cognitive ability and have right or wrong answers — personality tests have no correct responses. They map your tendencies, preferences, and motivations, typically to one or more descriptive frameworks.
Personality assessments are used across two broad contexts: self-development (understanding your own strengths, blind spots, and interpersonal style) and organisational selection and development (screening job candidates, building teams, and identifying leadership potential).
All personality tests are psychometric (they're standardised, measurable assessments), but not all psychometric tests are personality tests. The psychometric umbrella also covers aptitude tests (numerical, verbal, inductive reasoning) which measure cognitive ability. When employers say "psychometric test," they typically mean a combination of both cognitive and personality assessments.
What Personality Tests Measure
| Category | What It Captures | Example Frameworks |
|---|---|---|
| Cognitive Style | How you process information, make decisions, and solve problems | MBTI, 16 Personalities |
| Personality Traits | Stable, consistent behavioural tendencies across situations | Big Five, SHL OPQ32, Hogan HPI |
| Behavioural Style | How you communicate, influence, and interact with others | DISC, Hogan HDS |
| Core Motivations | What drives, fears, and fulfils you at a deep level | Enneagram, Hogan MVPI, Saboteur |
| Derailment Risk | Tendencies that emerge under stress and may undermine performance | Hogan HDS (Dark Side) |
Common Applications
- Career guidance — identifying roles, industries, and environments that align with your natural style
- Team building — understanding complementary styles and potential friction points within a group
- Leadership development — identifying strengths to leverage and blind spots to manage
- Recruitment screening — assessing cultural fit and predicting job performance (with appropriate caveats)
- Coaching and therapy — building self-awareness as a foundation for behaviour change
How Personality Tests Are Used in Hiring
Personality assessments are now a standard component of recruitment at most large employers. They are used differently from aptitude tests — rather than filtering candidates with a pass/fail cut score, personality questionnaires typically inform a broader profile used for interview questions, role-fit judgements, and development planning.
How the Process Works
| Hiring Stage | Typical Personality Assessment | Purpose |
|---|---|---|
| Online assessment stage | SHL OPQ32, Hogan HPI, DISC, or Big Five-based questionnaire | Role-fit profile; cultural alignment screening |
| Assessment centre | Group exercises + personality debrief | Validate online results; observe behaviour in context |
| Competency interview | Personality report used to generate structured questions | Probe personality-derived hypotheses with real examples |
| Leadership/senior hiring | Hogan full suite (HPI + HDS + MVPI) | Predict derailment risk, values alignment, and leadership style |
Attempting to present a false profile is both difficult and counterproductive. Modern workplace personality tests (OPQ32, Hogan) include consistency checks and social desirability scales that flag implausible or overly positive response patterns. More fundamentally, if you misrepresent your personality to get a role, you're likely to find yourself in an environment that doesn't suit you. The best approach is to answer authentically and consistently — reflecting your behaviour at work, not your ideal self.
Key Difference from Aptitude Tests
Unlike aptitude tests, personality questionnaires used in hiring are ipsative (forced-choice) rather than normative. In an ipsative format, you must choose between pairs or triads of statements — there is no neutral middle ground, and answering "all of the above" is impossible. This format is more resistant to social desirability bias and produces more nuanced profiles. The SHL OPQ32 is the most prominent example in corporate recruitment — see its dedicated section below.
MBTI: Myers-Briggs Type Indicator
The Myers-Briggs Type Indicator (MBTI) is the world's most widely administered personality instrument, taken by approximately 2 million people per year. Developed by Isabel Briggs Myers and Katharine Cook Briggs, it is grounded in Carl Jung's theory of psychological types and categorises personality into 16 distinct types based on four binary dimensions.
While the MBTI is widely used in corporate training, coaching, and self-development contexts, it is less commonly used for selection decisions than the Big Five or OPQ32 — primarily because its binary type categories have lower predictive validity for job performance than continuous trait scales.
The Four MBTI Dimensions
MBTI Strengths and Limitations
| Strengths | Limitations |
|---|---|
| Intuitive, accessible framework — easy to learn and apply | Binary categories don't capture nuance — most people fall near the middle of each dimension |
| Strong for self-awareness and team communication workshops | Test-retest reliability issues — ~50% of people get a different type after 5 weeks |
| Widely recognised and culturally embedded | Lower predictive validity for job performance vs Big Five |
| Non-pathologising — all types are presented as equally valid | Not recommended by most I-O psychologists for hiring decisions alone |
If an employer uses the MBTI in their process, it is almost always for development purposes after hire — not for screening or selection. It is rarely used as a standalone hiring filter. If you're preparing for a recruitment personality test, focus on the Big Five framework (see Section 05) and the SHL OPQ32 (see Section 06) — these are the formats most commonly encountered in candidate assessments.
The 16 Personalities Test
The 16 Personalities Test (16personalities.com) is a free online adaptation of the MBTI framework that adds a fifth dimension — Assertive (A) vs Turbulent (T) — giving 32 possible variants across the same 16 type codes. It is one of the most widely taken personality tests in the world, popular for its accessible language, free availability, and visually engaging format.
While not an accredited psychometric instrument, it performs well as a self-discovery tool and conversation starter in team settings. It should not be used for high-stakes hiring decisions.
The Fifth Dimension: Identity
The 16 Type Groups
The Big Five (OCEAN Model)
The Big Five — also known as the Five-Factor Model (FFM) or the OCEAN model — is the most scientifically validated personality framework in existence. Unlike MBTI, which sorts people into discrete categories, the Big Five measures each trait on a continuous spectrum, producing a nuanced profile rather than a single type label.
It is the dominant framework in academic personality psychology, industrial-organisational (I-O) psychology research, and increasingly in formal hiring assessments. Most modern workplace personality tests (including the SHL OPQ32 and Hogan assessments) are grounded in or closely aligned with the Big Five model.
Openness to Experience
Reflects intellectual curiosity, creativity, openness to new ideas, and aesthetic sensitivity. High scorers tend to be imaginative, innovative, and drawn to novel experiences. Low scorers tend to be practical, conventional, and prefer routine and the familiar.
Conscientiousness
The single strongest Big Five predictor of job performance across virtually all roles. Reflects self-discipline, organisation, goal-directedness, reliability, and attention to detail. High scorers are diligent, planned, and dependable. Low scorers are flexible and spontaneous but may struggle with follow-through.
Extraversion
Reflects sociability, assertiveness, positive emotionality, and energy derived from social interaction. High scorers thrive in social environments and tend toward leadership and sales roles. Low scorers (introverts) work best independently or in small groups and tend toward analytical and creative roles.
Agreeableness
Reflects cooperativeness, trust, empathy, and orientation toward others' wellbeing. High scorers are collaborative, compassionate, and conflict-averse. Low scorers are competitive, direct, and sceptical — which can be valuable in negotiation-heavy roles but challenging in teamwork-dependent ones.
Neuroticism (Emotional Stability)
Reflects the tendency to experience negative emotions — anxiety, irritability, moodiness. Often scored and reported as its inverse: Emotional Stability. High neuroticism is associated with stress sensitivity and reactivity; high stability with resilience and composure under pressure. This is the trait most strongly associated with burnout risk.
Research consistently shows that Conscientiousness is the strongest predictor of job performance across all roles. Extraversion predicts success in sales and leadership roles specifically. Openness predicts creative and innovative performance. Neuroticism (low) predicts resilience in high-stress roles. Understanding your Big Five profile helps you identify environments where you'll naturally thrive — and those where you'll need to consciously compensate.
SHL OPQ32: The Leading Workplace Personality Test
The SHL Occupational Personality Questionnaire (OPQ32) is the most widely used personality assessment in corporate recruitment globally. It is administered through SHL's TalentCentral platform and is the primary personality instrument used by Deloitte, PwC, HSBC, Barclays, Unilever, Shell, and hundreds of other major employers.
The OPQ32 measures 32 personality characteristics organised across three domains: Relationships with People, Thinking Style, and Feelings & Emotions. It uses an ipsative forced-choice format — three statements per question, and you must choose the most and least like you.
The Three Domains
| Domain | What It Measures | Example Scales |
|---|---|---|
| Relationships with People | How you interact with, influence, and relate to others | Persuasive, Controlling, Outspoken, Independent minded, Outgoing, Affiliative, Socially confident, Modest, Democratic, Caring |
| Thinking Style | How you approach problems, structure work, and manage information | Data rational, Evaluative, Behavioural, Conventional, Conceptual, Innovative, Variety seeking, Adaptable, Forward thinking, Detail conscious, Conscientious, Rule following |
| Feelings & Emotions | How you manage emotions, stress, and energy in work contexts | Relaxed, Worrying, Tough minded, Optimistic, Trusting, Emotionally controlled, Vigorous, Competitive, Achieving, Decisive |
The Forced-Choice Format Explained
Each OPQ32 question presents three behavioural statements. You select the statement that is most like you and the one that is least like you. The middle statement is not chosen. This format forces relative prioritisation and prevents you from endorsing everything positively.
- A: I enjoy persuading others to adopt my point of view
- B: I like to have a structured routine at work
- C: I tend to stay calm even in stressful situations
You select one as Most like me and one as Least like me. The third is left unchosen. Your pattern across all 104 questions builds a profile across all 32 scales.
How OPQ32 Results Are Used
Your OPQ32 profile is mapped to a Universal Competency Framework — translating personality scores into predicted competency levels for the role in question. Common competencies assessed include Leading & Deciding, Supporting & Cooperating, Interacting & Presenting, Analysing & Interpreting, and Adapting & Coping. Hiring managers use the report to generate targeted interview questions for areas of concern — not to filter candidates in or out directly.
For a full guide including all 32 scales, example triads, and specific competency mappings, see our dedicated OPQ32 guide.
DISC: Dominance, Influence, Steadiness, Conscientiousness
The DISC model is a behavioural style framework widely used in corporate training, team development, and sales coaching. Originally based on psychologist William Marston's work from the 1920s, it classifies behavioural tendencies into four styles — Dominance, Influence, Steadiness, and Conscientiousness — and their combinations.
Unlike the Big Five or OPQ32, DISC is primarily a communication and collaboration tool rather than a predictive selection instrument. It is particularly popular in leadership development, sales training, and team dynamics workshops.
DISC in Hiring and Team Contexts
DISC is rarely used as a standalone selection tool — its simplicity makes it more suitable for communication awareness than for predicting job performance. In hiring, it typically appears in leadership assessment centres or team profiling exercises, where understanding how candidates prefer to communicate and collaborate is more relevant than predicting task performance.
Most people have a primary style (highest scoring dimension) and a secondary style, and blend these across different situations. A high-D with a secondary-C (Dominance + Conscientiousness) is often described as a strategic, data-driven decision-maker.
Hogan Assessments
Hogan Assessments are the gold standard in senior and executive hiring. Developed by Dr. Robert Hogan, they are grounded in evolutionary and socioanalytic psychology and are widely regarded as the most scientifically rigorous personality tools available for organisational use. They are used to assess C-suite candidates, senior managers, and high-potential talent programmes at companies including Fortune 100 firms globally.
Hogan produces three complementary reports that together provide a comprehensive picture of personality, risk, and motivation.
Why the "Dark Side" Matters
The HDS is considered one of Hogan's most valuable instruments precisely because it identifies patterns that typically go undetected in standard interviews and bright-side personality tests. For example, a leader who scores high on "Bold" may project supreme confidence in interviews — but under sustained pressure, this can manifest as an unwillingness to admit mistakes, listen to feedback, or change course. These derailment patterns are associated with a disproportionate share of leadership failures in organisations.
If you're being assessed for a leadership or C-suite role using Hogan, the full three-report suite typically takes 40–60 minutes. Results are used for structured interview generation and a coaching debrief, not as a pass/fail filter. The best preparation is genuine self-reflection on your peak-performance style, your stress-triggered tendencies, and what you genuinely value in a work environment.
The Enneagram
The Enneagram is a personality system that maps personality according to nine distinct core motivational patterns — each defined by a fundamental desire, a fundamental fear, and a characteristic way of relating to the world. Unlike trait-based models (Big Five, DISC), the Enneagram focuses on why you behave as you do rather than what you do.
The Enneagram is used extensively in executive coaching, leadership development, and spiritual growth contexts. It is less commonly used in formal selection than OPQ32 or Hogan, but is valued for the depth of psychological insight it generates.
Each Enneagram type has two adjacent types called wings (the numbers on either side of yours) which shade your primary type. Types also have integration (growth) and disintegration (stress) directions — paths to other types you move toward when thriving or under pressure. This dynamic, developmental dimension is what distinguishes the Enneagram from static trait models and makes it particularly valuable in coaching contexts.
The Saboteur Assessment (Positive Intelligence)
The Saboteur Assessment is a free psychological tool developed by Shirzad Chamine as part of his Positive Intelligence (PQ) framework. It identifies the mental patterns — called saboteurs — that generate negative emotions, undermine performance, and block wellbeing. The framework is grounded in neuroscience, cognitive psychology, and mindfulness research.
Unlike the Big Five or MBTI, which describe who you are, the Saboteur Assessment maps the self-limiting mental habits that operate against you — even when you're performing well. This makes it particularly valuable in coaching, leadership development, and stress resilience programmes.
The Judge: Your Master Saboteur
Every person has a Judge as their primary saboteur. The Judge constantly finds fault — with yourself, others, and circumstances. It is the source of guilt, regret, anxiety, blame, and frustration. The Judge then enlists one or more accomplice saboteurs to do its bidding.
The 9 Accomplice Saboteurs
How the Positive Intelligence Framework Responds
The PQ framework distinguishes between your Saboteur mind (the default, reactive mental operating system running saboteur patterns) and your Sage mind (your wiser, positive-intelligence-based self that responds with empathy, curiosity, creativity, and action from a place of strength rather than fear). The goal is not to eliminate saboteurs — they developed for good early reasons — but to intercept them before they hijack your responses.
This framework is particularly powerful in executive coaching, leadership development, and burnout prevention. It is less suited to formal hiring selection and more suited to personal growth and team coaching contexts. The free assessment at positiveintelligence.com takes approximately 5 minutes and identifies your top saboteurs with a personalised report.
Side-by-Side Comparison of All 8 Tests
Use this table to quickly compare all eight personality frameworks across the dimensions that matter most for your context — whether you're preparing for a hiring assessment, choosing a tool for your team, or exploring for personal development.
| Test | Framework Type | Primary Use | Format | Scientific Validity | Used in Hiring? | Free? |
|---|---|---|---|---|---|---|
| MBTI | 16 categorical types (4 dimensions) | Self-awareness, team workshops | ~90 questions, forced choice | Moderate | Rarely (dev only) | Paid (£35–£50) |
| 16 Personalities | 16 types + identity scale | Self-discovery, teams | ~120 questions, scale | Moderate | No | ✅ Free |
| Big Five (OCEAN) | 5 continuous trait dimensions | Research, coaching, hiring basis | 44–300 items, Likert scale | Very High | Yes — indirect | ✅ Many free versions |
| SHL OPQ32 | 32 workplace personality scales | Corporate recruitment | 104 triads, forced choice | Very High | ✓ Primary use | Employer-administered |
| DISC | 4 behavioural styles | Team communication, sales training | ~30 questions, adaptive choice | Good | Sometimes | Paid (various providers) |
| Hogan (full suite) | HPI + HDS + MVPI (multi-report) | Senior/executive hiring, leadership | Three questionnaires (~60 min) | Very High | ✓ Senior/exec roles | Employer-administered |
| Enneagram | 9 motivational types | Coaching, personal growth | ~100–145 questions | Moderate–Good | Sometimes (coaching) | ✅ Free basic; paid full |
| Saboteur (PQ) | 10 self-limiting mental patterns | Executive coaching, resilience | ~50 questions | Emerging | No | ✅ Free |
If you have an upcoming personality assessment as part of a job application, the vast majority of corporate recruitment tools are either the SHL OPQ32 or built on Big Five principles (including Hogan HPI, Saville Wave, and most Big Four firm questionnaires). MBTI and Enneagram are rarely used for selection. See our full OPQ32 guide for preparation strategies.
Which Personality Test Should You Take?
The right test depends entirely on your purpose. Below is a clear decision guide by use case.
- Read our SHL OPQ32 guide — this is the most common format
- Understand the forced-choice format and competency mapping
- Familiarise yourself with Big Five trait descriptions
- Do not try to game the test — answer consistently and authentically
- Start with 16 Personalities (free, accessible, surprisingly accurate)
- Deepen with the Enneagram for motivational insight
- Take a free Big Five test for the most scientifically grounded profile
- Use MBTI if your workplace or coach uses it for common language
- DISC is purpose-built for team communication — start here
- Big Five provides the most scientifically valid team profiling
- Enneagram is valuable for deep interpersonal understanding
- 16 Personalities works well for accessible, jargon-free workshops
- Hogan full suite (HPI + HDS + MVPI) is the industry standard
- Enneagram provides motivational depth valuable in coaching contexts
- Saboteur Assessment is excellent for burnout prevention and resilience
- Big Five underpins most leadership profiling — understand it well
Frequently Asked Questions
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