About this website
This website has been offering a wide selection of psychological tests, mostly personality tests, since late 2011 and has given millions of results since then. It exists to educate the public about various personality tests, their uses and meaning, the various theories of personality and also to collect research data. This website is under continuous development and new tests and information are being added all the time.
This website also exists for the promotion of open source assessments and open data. A number of open source measures of popular psychological constructs have been developed and are made available under a creative commons licence on this website, see the full list. Also, at the end of every test users are asked if their data can be saved and used for research. The (anonymous) data that this yields can be downloaded from the data page. This data has already been used in several academic articles.
If you would like to contact the operators with a question, direct your email to self@[the current domain]. Questions, corrections, suggestions, and proposals are all welcome.