Costa PT, Jr., McCrae RR. The five-factor model of personality and its relevance to personality disorders. J. Pers. Disorders 1992;6(4):343-359.

The 5-factor model is a dimensional representation of personality structure that has recently gained widespread acceptance among personality psychologists. This article describes the 5 factors (Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness); summarizes evidence on their consensual validity, comprehensiveness, of personality.