Big Five (Five-Factor Model, OCEAN)

The Big Five, or Five-Factor Model, describes personality along five broad, statistically independent dimensions summarised by the acronym OCEAN. It emerged from the lexical tradition (Goldberg) and was formalised by Costa and McCrae from the 1980s onward, sorting people by where they fall on each trait rather than into fixed types. Our free course walks through all five traits, shows you how to read high and low scores, and closes with an honest look at the model's evidence and limits.

The Big Five has strong empirical support and is regarded as the scientific consensus model of personality structure in academic psychology. The Five-Factor Model was consolidated by Costa & McCrae (1992), building on Goldberg's (1990) lexical research. (Lewis Goldberg (lexical tradition) and Paul Costa & Robert McCrae, 1980s-1990s)

Dimensions

• Openness to Experience (Conventional – Open) — Scoring high means being curious, imaginative, and drawn to novelty, art, and abstract ideas, while scoring low means preferring the familiar, practical, and routine.
• Conscientiousness (Spontaneous – Conscientious) — Scoring high means being organised, disciplined, and goal-directed, while scoring low means being more easygoing, flexible, and spontaneous about plans and details.
• Extraversion (Introverted – Extraverted) — Scoring high means being outgoing, energetic, and energised by social interaction, while scoring low means being more reserved, quiet, and comfortable in solitude.
• Agreeableness (Antagonistic – Agreeable) — Scoring high means being compassionate, cooperative, and trusting of others, while scoring low means being more sceptical, competitive, and willing to put one's own interests first.
• Neuroticism (Emotionally Stable – Neurotic) — Scoring high means experiencing anxiety, mood swings, and stress more readily, while scoring low (emotional stability) means staying calm, resilient, and even-tempered under pressure.

References

• Goldberg, L. R. (1990). An alternative "description of personality": The Big-Five factor structure. Journal of Personality and Social Psychology, 59(6), 1216–1229
• McCrae, R. R., & John, O. P. (1992). An introduction to the five-factor model and its applications. Journal of Personality, 60(2), 175–215
• Costa, P. T., & McCrae, R. R. (1992). Revised NEO Personality Inventory (NEO-PI-R) and NEO Five-Factor Inventory (NEO-FFI) professional manual. Psychological Assessment Resources

Related topics

• HEXACO model
• Eysenck PEN model
• Cattell 16 Personality Factors (16PF)
• Dark Triad / Dark Tetrad
• Light Triad

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