Big Five Personality Model: OCEAN personality model

About the Big Five Personality Model

The Big Five personality model was not invented by a single person at a single moment. It emerged gradually through factor-analytic studies starting in the 1930s (when Allport & Odbert collected 18,000 personality-related English words), through Cattell's 16-factor work in the 1940s (which over-resolved the structure), through Tupes & Christal's 1961 USAF reanalysis (which identified 5 factors), and finally through Lewis Goldberg's 1981 lexical studies and Paul Costa & Robert McCrae's 1985 NEO-PI work (which converged on the modern 5-factor consensus).

The five factors, conventionally remembered as OCEAN: Openness to Experience (curiosity, imagination, aesthetic sensitivity), Conscientiousness (organization, discipline, achievement striving), Extraversion (sociability, energy, positive emotion), Agreeableness (cooperation, trust, prosocial orientation), and Neuroticism (emotional volatility, anxiety, negative emotion).

The Big Five has dominated personality research since 1990. It has been cross-validated across cultures (mostly stable in WEIRD cultures, with some variation in others), shows strong heritability (about 50% per factor), predicts life outcomes meaningfully (Conscientiousness predicts job performance; Neuroticism predicts mental health), and has stable adult test-retest reliability. The IPIP (International Personality Item Pool) provides free public-domain Big Five items widely used in research; commercial instruments (NEO-PI-R, NEO-PI-3) are also available.

The 5 subtests

Source

All test materials and historical content on this page are transcribed from:

The Big Five model itself is a theoretical framework; specific Big Five measurement instruments (NEO-PI-R, IPIP, BFI) have various copyright statuses. The IPIP (International Personality Item Pool) provides free public-domain Big Five items.