The International Personality Item Pool (IPIP)

The International Personality Item Pool is a scientific collaboratory (a computer-supported system that allows scientists to work with each other, facilities, and data bases without regard to geographical location) for the development of advanced measures of personality and other individual differences. The IPIP Website is intended to provide rapid access to measures of individual differences, all in the public domain, to be developed conjointly among scientists worldwide.

Web: http://ipip.ori.org/