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Cover of Hare's Psychopathy Checklist-Revised (2nd ed., 2003). The Psychopathy Checklist or Hare Psychopathy Checklist-Revised, now the Psychopathy Checklist—revised (PCL-R), is a psychological assessment tool that is commonly used to assess the presence and extent of psychopathy in individuals—most often those institutionalized in the criminal justice system—and to differentiate those ...
Psychopathy is most commonly assessed with the Psychopathy Checklist, Revised (PCL-R), created by Robert D. Hare based on Cleckley's criteria from the 1940s, criminological concepts such as those of William and Joan McCord, and his own research on criminals and incarcerated offenders in Canada.
Hare redrafted the checklist in 1985 following Cleckley's death in 1984, renaming it the Hare Psychopathy Checklist Revised (PCL-R). It was finalised as a first edition in 1991, when it was also made available to the criminal justice system, which Hare says he did despite concerns that it was not designed for use outside of controlled ...
[1] [2] In contrast to other psychopathy measures, such as the Hare Psychopathy Checklist (PCL), the PPI is a self-report scale, rather than an interview-based assessment. It is intended to comprehensively index psychopathic personality traits without assuming particular links to anti-social or criminal behaviors.
Hare redrafted his checklist in 1985 (Cleckley had died in 1984), renaming it the Hare Psychopathy Checklist Revised and finalising it as a first edition in 1991, updated with extra data in a 2nd edition in 2003. Hare's list differed from Cleckley's not just in rewordings and introducing quantitative scores for each point.
Ronson visits purported psychopaths, as well as psychologists and psychiatrists who have studied them, particularly Canadian psychologist Robert D. Hare, the eponymous author of the Hare Psychopathy Checklist, a 20‑part test administered to detect psychopathy. Ronson explores the idea that many corporate and governmental leaders are ...
Psychopathy Checklist; Q. Quick Reference Handbook; S. Sustainability declaration; Symptom Checklist 90; W. WHO Surgical Safety Checklist This page was last edited on ...
The concept of psychopathy continues to be influential through forming parts of the diagnosis of antisocial personality disorder, the Psychopathy Checklist, and public perception. Filmmaker Errol Morris, who tried unsuccessfully to interview Cleckley, said in 2012/13: "He's one of the unsung 20th-century figures. He created two of the enduring ...