Investigation into the five factor model started in 1949 when D.W. Fiske was unable to find support for Cattell’s expansive 16 factors of personality, but instead found support for only five factors. Research increased in the 1980s and 1990s, offering increasing support for the five factor model. The five factor personality traits show consistency in interviews, self-descriptions, and observations, as well as across a wide range of participants of different ages and from different cultures. It is the most w
Source: The Five-Factor Model
