Evidence-based assessments for curious minds
CoreSkillAI was built on a simple idea: everyone deserves access to professional-grade cognitive and personality tests without a paywall, an account, or a sales pitch at the end.
We combine research from clinical psychology, cognitive science and neuroscience into interactive tests that take minutes rather than hours, and we explain the reasoning behind every score.
Percentile norms derived from published research involving hundreds of thousands of participants globally.
Each assessment is based on established psychological constructs: the Big Five, emotional intelligence, the Stroop effect and Miller's law.
We store nothing. Results are computed in your browser and never transmitted to any server.
Available in 34 languages, each with its own native content. No account, no paywall, no advertising targeted at you.
40 questions across number series (sequential reasoning), visual matrix patterns (spatial intelligence) and numerical analogies. Scored on the standard scale with a mean of 100 and a standard deviation of 15.
Based on simple visual reaction time research. The average adult response falls between 250 and 270 milliseconds; the distribution data comes from large public datasets.
Miller's 1956 research found that people hold about seven items, plus or minus two, in working memory. The digit span task is the classic way of measuring that limit.
Questions adapted from the IPIP Big-Five Factor Markers (Goldberg, 1992). The five-factor model is the most replicated structure in personality psychology.
First described by J. R. Stroop in 1935. The interference effect measures executive function and cognitive control, and it is one of the most reproducible findings in the field.
CoreSkillAI builds free, anonymous versions of classic instruments from experimental psychology — digit span, matrix reasoning, the Stroop task and the five-factor model — and presents them in a form that takes minutes rather than an afternoon.
No account is required, results are computed on your device, and nothing you enter is sold or shared. Percentiles are calculated against anonymised aggregate score distributions. These tools are for education and self-exploration; they are not clinical instruments, and no online test can replace professional psychological or medical assessment.