Understand the tests, not just the scores.
Five kinds of learning resources, written from the research and reviewed by a psychometrician. Read what a test measures, find out what a score means, or check how the evidence holds up.
Test guides.
In-depth guides to the major psychological tests: what each one measures, how it is scored and how to read a result against a reference population.
50+ guides
Start with one of these
Goes well withHow tests are validatedArticles
Articles.
What a high or a low score actually means, and what the research supports. Grouped by topic, with no flattery and no horoscopes.
80+ articles
Goes well withTest guidesHow tests are validated
Pick a topic
- High Openness: What It Actually Means
- Low Openness: What It Actually Means
- High Conscientiousness: What It Actually Means
- The 30 Facets of the Big Five, Explained
- The Imagination Facet (Openness)
- The Artistic Interests Facet (Openness)
Instrument catalogue.
A reference to internationally used psychological instruments: what each one measures, its length and format, its language versions and its licence. Metadata only, never test items.
1,200+ instruments · 18 domains
Goes well withHow tests are validatedThe science behind our tests
The largest domains
- Clinical: specific disorders
- Clinical: mood, anxiety and stress
- Health, quality of life and health psychology
- Developmental, child, family and couple
- Neuropsychology and cognitive screening
- Clinical: broadband and severity
- Work: attitudes and wellbeing
- Intelligence and cognitive ability
Bar length shows each domain's size relative to the largest. Select a domain to see its instruments.
How tests are validated.
How a set of answers becomes a percentile you can rely on: an established instrument, strict scoring, population norms and honest limits.
Goes well withThe science behind our testsInstrument catalogue
How a score is built
- Established test with validated, sourced items
- Strict scoring protocol
- Population norms as the reference
- Your percentile - where you stand
The science behind our tests.
The published record behind the platform: the international studies its founder has designed and validated assessments for.
20+
years in international assessment research
50+
publications
2500+
citations
Goes well withHow tests are validatedTest guides
Not sure where to begin.
Pick what you want to do, and go straight to the two places that answer it.
Read the guide for a test first: what it measures, how long it takes and what the result looks like. Then see how its score is reached.
More on the way.
New guides and articles are added as each one is reviewed. Everything on this page is free to read.