New research suggests there is one core factor that drives all negative personality traits: the D-factor.
Egoism, Machiavellianism, moral disengagement, narcissism, psychological entitlement, psychopathy, sadism, self-interest, and spitefulness are all negative personality traits recognized in psychology.
Some of them, such as sadism, rely on other people’s pain and discomfort for personal satisfaction.
Others, such as egoism, mean simply that a person is likely to place their own advantage first and foremost.
Despite the fact that each of these negative personality traits is characterized by excessive self-absorption and other similar inclinations to different degrees, they all stem from the same dark core, sharing the same psychological basis.
So argue researchers from the University of Copenhagen in Denmark, Ulm University, and the University of Koblenz-Landau — both in Germany.…