Psychopathy Checklist (PCL-R)

The Hare Psychopathy Checklist-Revised (PCL-R) is the standard instrument for assessing psychopathy in forensic and correctional settings. A trained clinician rates 20 items on a three-point scale from a semi-structured interview and detailed file review, producing a total score (and two underlying factors) that index the interpersonal-affective and lifestyle-antisocial features of the construct, with scores at or above 30 typically marking psychopathy.