The five domains
Remembered by the acronym OCEAN, each domain breaks down into six narrower facets – which is where a lot of the useful detail lives.
The framework
The Big Five – the model that won.
Five broad dimensions, each a continuum, together capturing most of how human personalities reliably differ. It is the consensus structure in academic psychology – and the backbone of this site.
Openness
Your appetite for novelty, ideas, art, imagination, and the unconventional – versus the familiar and concrete.
Imagination · Artistic Interests · Emotionality · Adventurousness · Intellect · Liberalism
Conscientiousness
How organized, dependable, and goal-directed you are – your tendency to plan, persist, and follow through.
Self-Efficacy · Orderliness · Dutifulness · Achievement-Striving · Self-Discipline · Cautiousness
Extraversion
How much you draw energy from people, activity, and stimulation, and how readily you express positive emotion.
Friendliness · Gregariousness · Assertiveness · Activity Level · Excitement-Seeking · Cheerfulness
Agreeableness
How much you prioritize getting along with and caring for others, versus your own interests and frank self-assertion.
Trust · Morality · Altruism · Cooperation · Modesty · Sympathy
Neuroticism
How readily and intensely you experience negative emotions like worry, frustration, and sadness – the inverse of emotional stability.
Anxiety · Anger · Depression · Self-Consciousness · Immoderation · Vulnerability
Where it came from
The Big Five grew out of the lexical hypothesis: the idea that the personality differences that matter get encoded in language. Allport and Odbert (1936) catalogued thousands of trait words; Cattell, then Tupes and Christal (1961), then Goldberg (who coined “Big-Five” in 1990) repeatedly found that those words collapse into five factors. Costa and McCrae built the influential NEO inventories around the same structure. Crucially, the five recur across more than 50 cultures – they aren’t just an artifact of English.
What we know about it
- Heritable. Roughly 50% of the variation in Big Five traits is genetic.
- Stable, but not fixed. Rank-order stability rises from about r = .31 in childhood to .74 in late middle age (Roberts & DelVecchio, 2000).
- It matures. The maturity principle – one of the most robust findings in the field – is that Conscientiousness and Agreeableness tend to rise across adulthood while Neuroticism declines.
- It predicts life. Aggregate prediction of outcomes like mortality, divorce, and occupational attainment is meta-analytically on par with socioeconomic status and IQ (Roberts et al., 2007) – though prediction for any single individual is moderate (r ≈ .20–.30).
A sixth factor: HEXACO
Lexical studies across several languages recovered a sixth dimension the Big Five folds in only partly: Honesty-Humility. The HEXACO model (Ashton & Lee, 2007) adds it, and it uniquely predicts integrity, exploitation, and the “dark” traits beyond what Big Five Agreeableness captures. Our test uses the Big Five backbone, but Honesty-Humility shows up indirectly in our Agreeableness facets (especially Morality and Modesty).
See your own five
Reading about the dimensions is one thing; seeing where you fall is another. Take the test →
Selected sources
- Goldberg, L. R. (1990). An alternative “description of personality”: the Big-Five factor structure. JPSP, 59(6), 1216–1229.
- Roberts, B. W., & DelVecchio, W. F. (2000). The rank-order consistency of personality. Psychological Bulletin, 126(1), 3–25.
- Roberts, B. W., et al. (2007). The power of personality. Perspectives on Psychological Science, 2(4), 313–345.
- Ashton, M. C., & Lee, K. (2007). Empirical, theoretical, and practical advantages of the HEXACO model. Personality and Social Psychology Review, 11(2), 150–166.