If you love personality tests but never found a label that fits, this is for you.

Personality tests feel authoritative, but most rest on shaky evidence. Used like broken rulers, they can prompt reflection ...

PHILADELPHIA – Whether it is barn-raising or crafting a business plan, humans are among the few creatures that are able to work well cooperatively. According to an evolutionary psychologist at the ...

Researchers are reconsidering how we define personality disorders. Current DSM definitions invoke a sufficient number of related symptoms. For this categorical approach, delineation of Borderline ...

Egoism, Machiavellianism, narcissism, psychopathy, sadism, spitefulness, and others are among the traits that stand for the malevolent dark sides of human personality. As results from a recently ...