psyblog covers the science of how the mind works, self-improvement, mental health and more. it is written by psychologist dr jeremy dean.

take free, scientifically validated personality tests based on myers and briggs' 16 types, enneagram, disc, holland code and more to instantly find your strengths.

5 personality tests - 10 minutes each. discover your strengths and weaknesses - join over 3+ mln people who've already taken the test!

tests, tools, & personal guidance

noba is an open and free online platform that provides high-quality, flexibly structured textbooks and educational materials.

hogrefe publishing is pleased to offer scientifically-based print and electronic assessments, books, and journals focused on psychiatry and psychology.

a free personality test built on empirical data! instead of pigeon-holing you as a personality type, the sapa personality test scores you on 27 traits. your customized report also includes scores on the big five model of personality. and your participation will help a collaborative community of personality researchers to build data-driven algorithms that improve personality prediction models.

a free online personality test that will help you discover your personal strengths and weaknesses. be yourself and answer honestly to find out your personality type

personal values test that will help you create a list of top five core values. what do you value most in your life? discover your personal values with this free test.