The Five Factor Model, which measures individual differences on extraversion, agreeableness, conscientiousness, emotional stability, and openness to experience,

This is the original work on which Hans Eysenck's fifty years of research have been built. It introduced many new ideas about the nature and measurement of pers

Since the second edition of this authoritative text was published in 2002, the research base supporting the Five-Factor Model (FFM) of personality disorder has

The Five-Factor Model Across Cultures was designed to further an understanding of the interrelations between personality and culture by examining the dominant p