Every accredited tool, scored against one Standard.
The Register is the evidence base beneath the GTI Standard. Each assessment instrument is examined against the same six weighted criteria by our independent panel, then published as a full scorecard. No sponsorships, no pay-to-rank — only the evidence that earns the mark.
Browse the scorecards
Filter by category or accreditation, and sort by score. Every entry links to its full, weighted scorecard and verdict.
7 assessments on the Register
Hogan Assessments
The validity benchmark for senior selection and derailment risk.
SHL Verify
Cognitive ability done at enterprise scale and rigour.
The Predictive Index
Fast, free-choice behavioural data built for managers, not psychologists.
Extended DISC / FinxS
A flexible, well-priced behavioural system for development and coaching.
Gallup CliftonStrengths
The category-defining strengths language — development, not selection.
16Personalities
A polished consumer test — not built for the workplace.
MBTI (Myers-Briggs)
Beloved for self-awareness; not defensible for selection.