who developed the five factor model of personality
Big Five personality traits The initial model was advanced by Ernest Tupes and Raymond Christal in 1961,[13] but failed to reach an academic audience until the 1980s. In 1990, J.M. Digman advanced his five-factor model of personality, which Lewis Goldberg extended to the highest level of organization.[14] These five overarching domains have been found to contain and subsume most known personality traits and are assumed to represent the basic structure behind all personality traits.[15]