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Many of which are one of a kind, not found anywhere else, and based on peer-reviewed scientific research.

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Browse expert assessments of personality types, as determined by professionals in the field according to a consistent, classical take on Jungian typology.

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Read 100+ free articles and 100+ premium articles on psychology, philosophy and individual differences, many with full citations and written by Ph.D.s.

What others say

Salman Rushdie

Salman Rushdie

Novelist

“I came out ENFP on the test, then found myself listed as a 'famous ENFP' – How did they know?”
Steven Pinker

Steven Pinker

Harvard professor of psychology

“I've enjoyed your site.”
Richard Noll

Richard Noll

Associate professor of psychology

“Your work on Jung is critical and well-researched. You are doing interesting work on your website.”
Cas Mudde

Cas Mudde

Associate Professor of Political Science

“Some of the questions on the Feminism Test are quite thought-provoking.”
Soren Hviid Pedersen

Soren Hviid Pedersen

Associate Professor of Political Science

“The Political Coordinates test seems to me to be quite good. The questions are insightful and cover both dimensions well.”
American Psychological Association
“Examples of online studies offering enjoyable feedback include your Big Five Test.”
The Washington Post
“We're really impressed with your website.”
University Of Massachusetts Amherst
“We like the lists you have, absolutely well thought out. You have done a stand up job with the process and the content is solid.”

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