Psychopathology Checklist-Revised (Pcl-R)

The Hare Psychopathology Checklist-Revised (PCL-R) is an assessment instrument that is widely accepted as a reliable and valid method for assessing psychopathy. It includes a clinical interview and collateral information by which to score the 20 items that measure characteristics of a psychopath. These characteristics include interpersonal, affective, and social lifestyle aspects of psychopathy. Furthermore, the instrument has been used as an aid in determining sentencing options, treatment suitability, and institutional placement options. The instrument, due to the nature of its development and the seriousness of the implications regarding the scores, can be used only by qualified professionals trained to administer, score, and interpret the results.