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WORKPLACE PERSONALITY TEST
Know what makes your people tick

Engagement comes from understanding what drives your people, how they prefer to work, and what they need to thrive. The Thomas Personality Assessment gives you that data, so you can build the kind of trust, collaboration, and connection that actually sticks.

With the Thomas Personality Assessment, you can:

  • Improve engagement and retention by understanding what motivates each person and tailoring your approach accordingly.
  • Build teams that collaborate by identifying how individuals think, collaborate, and respond to pressure before friction sets in.
  • Develop better leaders by giving managers the insight to coach with confidence, not instinct.

And, the reports are designed to be used directly by the people leading hiring and development decisions, without specialist support needed to interpret them. 

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Used by 10,000 businesses globally | ISO-certified | Backed by over 40 years of psychometric research.

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What is the Thomas Personality Assessment?

The Thomas Personality Assessment reveals the traits that drive how people think, work, and interact, and how those traits translate directly into workplace behaviour. It goes beyond interview personas to give you unbiased, predictive data on how someone will collaborate, lead, and grow over time.


Built on the Big Five model and delivered through the Thomas Assess platform, it takes under 10 minutes and generates instant, visual reports your hiring managers and HR teams can use straight away. No specialist training required.

It measures five core traits that shape long-term performance and engagement:

  • Openness — adaptability, creativity, and curiosity
  • Conscientiousness — reliability, work ethic, and focus
  • Extraversion — sociability, communication, and energy
  • Agreeableness — empathy, collaboration, and team orientation
  • Emotional stability — resilience, stress tolerance, and self-regulation

Combine it with the Behaviour, Aptitude, and Emotional Intelligence assessments in Thomas Assess for a complete picture of each person.

Personality-information

Why behavioural data
changes the engagement equation 

 

CVs tell you what someone has done. Interviews show their confidence. But neither tells you what motivates them, how they handle conflict, or what they need to feel engaged and valued. That's what personality data gives you — turning abstract people insights into the kind of everyday conversations that build trust, connection, and teams that actually want to stay.

43%

of middle managers are fundamentally disconnected from their work, often because no one has given them the tools to understand themselves or their teams.

31%

of employees are less likely to consider leaving if they feel seen by their managers. Personality data gives managers the insight to make that happen.

70%

of the variance in team engagement is driven by the manager, so developing self-awareness, and people understanding affects retention.

How it works

Whether you're improving hiring accuracy, personalising onboarding, or giving managers better tools to coach their teams, the Thomas Personality Assessment fits into your existing workflow without adding complexity.

Here’s how it works:

  • Choose your assessment. Use the Personality Assessment alone, or combined with the Behaviour, Aptitude, or Emotional Intelligence assessments for a fuller picture.
  • Invite candidates via email or through your ATS integration.
  • Participants complete it in under 10 minutes, fully online, on any device, no setup needed.
  • Review instant, visual results that are clear and actionable for any manager or HR leader.

With clear, actionable data, your teams can hire smarter, onboard faster, and reduce friction across roles and functions.

Assessments are just the start

Personality insight doesn't stop at hiring. It's most powerful when it shapes how you onboard, develop, and connect with people over time.


With Thomas, you link personality data across the full employee lifecycle — from recruitment through to coaching, development, and succession planning. 

 

  • Personalise onboarding around individual motivators and working styles to accelerate connection from day one
  • Reduce early attrition by aligning role expectations to personality strengths before friction builds
  • Equip managers to coach better with clear insight into what each person needs to feel engaged and valued
  • Build succession pipelines by identifying the traits linked to long-term leadership potential

When managers understand their people at this level, it transforms the quality of 1:1s, feedback conversations, and team dynamics — the exact things that drive engagement and reduce preventable turnover. 

 

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Built on science. Easy to use.

 

The Thomas Personality Assessment is built on the Big Five model, one of the most respected and widely validated frameworks in psychology. It's developed and maintained by in-house psychologists, ISO-certified, BPS-aligned, and backed by regular psychometric research.


You get the rigour of globally trusted psychological science in a format any HR team or manager can use without specialist support.

Frequently asked questions

 

It evaluates five core traits: openness, conscientiousness, extraversion, agreeableness, and emotional stability, to predict how individuals think, work, and interact at work.

Less than 10 minutes. It's fully online, mobile-friendly, and requires no setup or downloads.

Yes. The assessment is grounded in the Big Five model, one of the most respected scientific frameworks in psychology.

Managers get clear, actionable reports that can easily be compared in Thomas Assess's intuitive interface — ideal for selection, shortlisting, and planning personalised development support. Unlike tools that generate reports designed for specialists, Thomas outputs are built for the people actually making decisions.

Absolutely. It integrates seamlessly with Thomas' behavioural, aptitude, emotional intelligence, and 360 tools, all in one platform.

Yes. It's developed by in-house psychologists, ISO-certified, BPS-aligned, and backed by regular psychometric research.

Yes. Thomas Personality Assessments go well beyond hiring, helping identify individual strengths, motivators, and growth areas to enable personalised coaching and succession planning. For organisations where managers struggle to connect with and develop their people, personality data gives them a practical starting point for more meaningful conversations.

Start building teams that actually connect

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