The dark triad is a psychological theory of personality, first published by Delroy L. Paulhus and Kevin M. Williams in 2002,[1] that describes three notably offensive, but non-pathological personality types: Machiavellianism, sub-clinical narcissism, and sub-clinical psychopathy.[2][3][4][5] Each of these personality types is called dark because each is considered to contain malevolent qualities.[2][6][7][8]
All three dark triad traits are conceptually distinct although empirical evidence shows them to be overlapping. They are associated with a callous–manipulative interpersonal style.[9]
High scores in these traits have been found to statistically increase a person's likelihood to commit crimes, cause social distress, and create severe problems for organizations, especially if they are in leadership positions.[15] They also tend to be less compassionate, agreeable, empathetic, and satisfied with their lives, and less likely to believe they and others are good.[16] However, the same traits are also associated with some positive outcomes, such as mental toughness and being more likely to embrace challenges.[17]
A factor analysis found that among the big five personality traits, low agreeableness is the strongest correlate of the dark triad, while neuroticism and a lack of conscientiousness were associated with some of the dark triad members.[12] Research indicates that there is a consistent association between changes in agreeableness and the dark triad traits over the course of an individual's life.[18]
^Wall, H. J., Campbell, C. C., Kaye, L. K., Levy, A., & Bhullar, N. (2019). Personality profiles and persuasion: An exploratory study investigating the role of the Big-5, Type D personality and the Dark Triad on susceptibility to persuasion. Personality and Individual Differences, 139, 69-76.