The International Personality Item Pool (IPIP)

The International Personality Item Pool (IPIP) is a large collection of scientifically developed survey questions used to measure different aspects of a person's personality. It covers traits like extraversion, agreeableness, and emotional stability, based on well-established psychological theories. Researchers and practitioners use IPIP to assess personality in a reliable and standardized way, often for psychological research, counseling, or personal development. Because it’s a public domain resource, the IPIP helps ensure transparency and accessibility in personality assessment without proprietary restrictions.