For 40 years, the Big Five personality model has dominated psychology, but new research suggests it may be incomplete.

Have you ever wanted to change your personality? Author Olga Khazan reveals the science and promise of personality change.

Personality tests like Myers-Briggs promise insight and self-discovery but often fall short of scientific reliability.

Alexander Christensen's recent study probably won't rewrite 40 years of history in the field of psychology, but he hopes that ...

Today, psychopathic personality is measured using the 20-item psychopathy checklist, originally developed in the 1970s by Canadian psychologist Robert Hare for use in psychology experiments.

Key points Personality and identity changes are often described following an organ transplant. The recipients' personality changes sometimes match the personality traits of their donors. Cellular ...