International Personality Item Pool (IPIP) project

The International Personality Item Pool (IPIP) is a large collection of carefully developed questions used to assess different aspects of personality, based on widely accepted models like the Big Five. It provides researchers and professionals with freely accessible tools to measure traits such as openness, conscientiousness, extraversion, agreeableness, and neuroticism. The IPIP allows for consistent and reliable personality assessment without proprietary costs, supporting scientific research, psychological evaluations, and personal development initiatives worldwide.