ThePersonalityLab
New — Big Five v3 norms, 2026 release

The science of people,
engineered for hiring.

The Personality Lab is a psychometric platform for talent and people leaders. We combine peer-reviewed instruments — the Big Five, HEXACO, and the Job Demand-Control model — with modern engineering to make personality measurement predictive, defensible, and ready to deploy across your funnel.

EEOC adverse-impact monitoring. GDPR-compliant. Multi-language assessments in 10 locales. Used by talent leaders across financial services, technology, healthcare, and professional services.

Candidate assessment dashboard on a laptop — Big Five trait report
Candidate report — A. Reyes
Role: Senior PM

Big Five & HEXACO

Percentile norms · per locale

  • Conscientiousness88 · High
  • Openness71 · High
  • Emotional Stability64 · Moderate
  • Extraversion49 · Moderate

Built for talent & people-science teams in

  • Financial Services
  • Frontier Tech
  • Life Sciences
  • Professional Services
  • Consumer
01The case for measurement

Hiring is the most expensive decision a company makes.
Most teams still make it on instinct.

For more than fifty years, organizational psychology has shown the same result: structured assessment of personality and cognitive ability predicts job performance meaningfully better than interviews, résumés, or experience. The evidence base is one of the most replicated findings in applied psychology.

And yet most hiring conversations still rely on twenty minutes of unstructured chat. The Personality Lab exists to close that gap — with instruments your people scientists can defend, your legal team can audit, and your hiring managers actually want to use.

Talent team reviewing candidate psychometric profiles on a monitor

0.31

Mean validity of unstructured interviews for predicting job performance

Schmidt & Hunter (1998); McDaniel et al. (1994)

0.51

Validity gain when structured interviews are paired with conscientiousness measurement

Schmidt, Oh & Shaffer (2016)

30%

Of total annual compensation: estimated cost of a single mis-hire at senior IC levels

U.S. Department of Labor; SHRM (2022)

+10%

Incremental predictive power of conscientiousness over and above general mental ability for job performance

Barrick & Mount (1991); Salgado (1997)

02Methodology

Instruments built on the strongest evidence base in applied psychology.

Every assessment we ship is documented to APA Standards for Educational and Psychological Testing and the International Test Commission Guidelines. We publish a technical manual for each instrument: item construction, factor structure, internal consistency, test-retest reliability, criterion validity, and measurement invariance across protected groups.

When a customer cannot defend an instrument, they should not use it. Our manuals ship with the platform — they are not a marketing artifact.

Big Five, Enneagram & DISC — how we blend them →
i.01Instrument

Big Five (FFM)

Costa & McCrae (1992); Goldberg (1993)

The five-factor model is the most validated taxonomy of personality in modern psychology. We administer a 100-item Likert assessment with norms across age, gender, and locale, returning percentile scores on Openness, Conscientiousness, Extraversion, Agreeableness, and Emotional Stability.

α reliability .87–.91 · external validity r = .41 for job performance

i.02Instrument

HEXACO Honesty-Humility

Ashton & Lee (2007)

HEXACO adds a sixth factor — Honesty-Humility — that materially improves the prediction of counter-productive workplace behavior and integrity-related risk. Used as an overlay on the Big Five for roles with custodial or financial exposure.

Incremental validity over FFM for CWB: ΔR² = .07

i.03Instrument

Categorical typologies

Enneagram · DISC · four-axis type indicators

Most teams already use one of the popular typologies — Enneagram, DISC, or one of the trademark-protected four-letter type indicators. We don't sell them. We map our continuous trait scores into their language inside the report so coaches and managers don't have to learn a new vocabulary.

Discussed; not deployed as a primary hiring instrument

i.04Instrument

Stress & Resilience — JDC / ERI

Karasek (1979); Siegrist (1996)

A workplace-stress instrument grounded in the Job Demand-Control model and Effort-Reward Imbalance theory. Returns a Job Strain Index, Burnout Vulnerability Coefficient, and a four-quadrant profile (active / passive / high-strain / low-strain).

Used for team diagnostics, not hiring

i.05Instrument

Cognitive style — Chronotype

Horne & Östberg (1976); Roenneberg (2003)

A short circadian-preference instrument used in shift-pattern, on-call, and follow-the-sun operations. Provided as a non-diagnostic team-fit signal alongside role design.

Operational use only

i.06Instrument

Custom competency frames

Schmidt-Hunter meta-analytic blends

We build composite scores tailored to your role architecture — e.g. a 'high-stakes IC' composite that weights conscientiousness, emotional stability, and integrity. Each composite ships with its own technical manual.

Tier 1+ engagements

03Use cases

One platform, six decisions that compound.

We are deliberately narrow about what we sell. We do not run pulse surveys, we do not score engagement, we do not generate personality types you can put on a coffee mug. We measure traits that predict behaviour, and we make those measurements actionable at the points in the employee lifecycle where the cost of a wrong call is the highest.

u.01Use case

Pre-employment screening

Add a defensible signal to your funnel without slowing it down.

Assessments fire from your ATS the moment a candidate moves to phone screen. Reports surface trait percentiles, role-fit composites, and structured interview prompts tailored to the candidate's profile. Hiring managers see a one-page summary; people scientists see the full technical view.

  • 10–14 minute administration
  • Auto-scored with confidence intervals
  • Adverse-impact monitoring per requisition
u.02Use case

Internal mobility & succession

Decide who's ready — not just who's available.

Identify high-potential employees using validated leadership composites built on the Big Five, HEXACO, and behavioural-event data. Run succession planning with a defensible audit trail across business units, geographies, and pay grades.

  • Leadership readiness composites
  • Talent-pool benchmarking
  • Manager-coaching playbooks
u.03Use case

Team composition

Engineer the team you actually need.

Use trait diversity, stress-profile complementarity, and chronotype overlap to assemble project teams, on-call rotations, and leadership pairs. We provide team dashboards, not just individual reports.

  • Team trait diversity index
  • On-call & shift-rotation modeling
  • Pair compatibility scoring
u.04Use case

Leadership development

Move from generic 360s to evidence-grounded coaching.

Pair our personality and stress instruments with 360 input to give executive coaches a coherent picture. We integrate with leading coaching platforms and provide a longitudinal dashboard so progress is visible over quarters, not just at the next off-site.

  • Coach-facing profile views
  • Quarterly remeasurement
  • Behavioural-change tracking
u.05Use case

Onboarding & integration

Turn the first 90 days into a measurable program.

Assess new joiners on day one, share a profile with their manager, and pre-load conversation starters for 1:1s. Reduce voluntary attrition in the critical first year by making the implicit explicit.

  • Day-0 baseline assessment
  • Manager conversation prompts
  • Attrition-risk early warning
u.06Use case

M&A and reorganization

Reduce the people risk of structural change.

When two teams or two companies combine, culture risk is the single largest source of value destruction. We provide pre- and post-integration measurement frames so leadership can act on signal, not anecdote.

  • Pre-close culture diagnostic
  • Post-close integration tracking
  • Confidential executive dashboards
04Platform

Built for the operating cadence of modern talent teams.

Most psychometric vendors ship a PDF and call it product. We ship an API, a dashboard, SSO, role-scoped access, full audit logging, an evaluation environment for testing new instruments before they touch live candidates, and a managed service if your people-science team is still being hired.

Dark-mode talent platform dashboard with candidate pipeline and scores

Assessment library

Twelve validated instruments, multi-language, with technical manuals and item-level analytics.

Reports & dashboards

Candidate, hiring-manager, recruiter, and people-science views. Configurable scoring bands.

ATS & HRIS integrations

Native connectors plus a documented REST API. Webhook-based scoring pipeline.

Security & governance

SSO/SAML, audit logs, data residency in EU and US, GDPR DPA, ISO 27001 controls.

Integrations

  • Greenhouse
  • Workday
  • Lever
  • SAP SuccessFactors
  • BambooHR
  • Personio
  • Ashby
  • Rippling
05Research

We publish what we measure.

Every instrument we ship has a technical manual: item construction, factor structure, reliability, criterion validity, and measurement invariance across protected groups. We send the manual that matches your use case before the first call.

  • Technical manual

    Big Five — Norms, reliability, and measurement invariance.

    On requestRequest →
  • Position paper

    Why categorical personality typologies fail as hiring filters — and what to use instead.

    On requestRequest →
  • Technical manual

    HEXACO Honesty-Humility — integrity overlay on the Big Five.

    On requestRequest →
06Trust & compliance

Defensible by design.

Personality measurement carries real responsibility. We assume that every report we produce will, sooner or later, be reviewed by a regulator, a works council, or a candidate's lawyer.

EEOC adverse-impact monitoring
Continuous four-fifths-rule monitoring per requisition with documented evidence trail.
GDPR / Schrems II
EU data residency, candidate-side right-to-explanation, granular retention controls.
ISO 27001 / SOC 2 Type II
Annual third-party audits across infrastructure, access, and incident response.
Candidate experience
Plain-language reports for candidates, explicit opt-in, and a one-click data export.
Localization
10 locales with measurement-invariance testing before any new language is shipped.
Works councils
Pre-built dossier and Q&A templates for German, French, and Italian works councils.
07Pricing

Three engagements, priced per cohort — not per seat.

We do not publish a price list because we do not believe in selling psychometric measurement by the seat. Every engagement begins with a 30-minute conversation to understand your role architecture, your evidence requirements, and the regulatory context you operate in. You leave that call with a written proposal.

Engagement

Pilot

For a single requisition or one cohort.

  • Up to 50 candidates
  • Big Five + HEXACO instruments
  • Hiring-manager reports & technical manual
  • Slack support during the pilot
Start a pilot

Most teams start here

Growth

For talent teams running a structured funnel.

  • Unlimited candidates
  • Full assessment library
  • ATS integration & SSO
  • Dedicated people-science partner
  • Quarterly validity review
Talk to sales

Engagement

Enterprise

For multi-region organizations with works councils.

  • Custom composites & technical manuals
  • EU/US data residency
  • Works-council dossier & DPA
  • On-call psychometrician
  • Managed integration & rollout
Book a working session

/ Self-serve

Don't need a custom engagement? Buy prepaid credits.

Card checkout, corporate-discount code applied automatically, no expiration on the prepaid balance. For HR teams, L&D programmes, coaches, and agencies.

/ Get started

Talk to a people scientist,
not a sales rep.

A 30-minute working session with our people-science team. We look at the roles you're hiring for, the evidence you need to defend a measurement program, and the timeline that makes sense. No demo theatre.