Many psychologists have tried to reduce the many traits to a few essential ones. Amongst the best known essential trait approaches are:
Murray 1938 (20+ “needs”)
Cattell (16 traits): 16 Personality Factors questionnaire
Eysenck (3 traits): Eysenck Personality Questionnaire (EPQ) - Extraversion, Neuroticism, Psychotocism
Costa & McCrae (5 traits): NEO - Neuroticism, Extraversion, Openness to Experience, Agreeableness, Conscientiousness
Thursday, June 4, 2009
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