The Big Five Aspects Scale

Measure your Openness to Experience, Conscientiousness, Extraversion, Agreeableness, Neuroticism

The Big Five Aspect Scale is a comprehensive, open-source 100-item personality measure, which is scored so that you will receive information about five major personality traits and their ten aspects.

This test is based on Jordan Peterson, Colin DeYoung, Lena Quilty, Jeremy Gray's research and it is an alternative to the more famous big five personality traits.

The Big Five Aspect Scale come from the statistical study of responses to personality items, using a technique called factor analysis researchers can look at the responses of people to hundreds of personality items and ask the question "what is the best was to summarize an individual?". This has been done with many samples and the general result is that, while there seem to be unlimited personality variables, five stand out from the pack in terms of explaining a lot of a persons answers to questions about their personality: openness to experience, conscientiousness, extraversion, agreeableness and neuroticism

Over 100.000 people have taken the test

open source


This is an open source project under MIT-license.


The test is completely free


The items and scores are based on public available statistical research.
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Translated in 5 languages.

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