After its publication in 1991, the Psychopathy Checklist-Revised (PCL-R) became established as the “gold standard” for determining the extent to which an individual possesses psychopathic ...

Medically reviewed by Melissa Bronstein, LICSW Key Takeaways Psychopathy isn't an official diagnosis; however, it's used to describe traits such as a lack of empathy, aggressiveness, and deceitfulness ...

One of the most enduring ideas about crime — and violence more broadly — is that a lot of it is committed by people we call “psychopaths.” If you didn’t grow up with procedurals like “Law & Order: SVU ...