In psychometric terms, the current version of the checklist has two factors (sets of related scores) that correlate about 0.5 with each other, with Factor One closer to Cleckley's original personality concept than Factor Two. Assesses Psychopathic Personality Disorders in forensic populations. Originally designed to assess people accused or convicted of crimes, the PCL-R consists of a 20-item symptom rating scale that allows qualified examiners to compare a subject's degree of psychopathy with that of a prototypical psychopath. Hare receives royalties on licensed use of the test. Hare Psychopathy Checklist-Revised: 2nd Edition Robert D. The PCL was originally developed in the 1970s by Canadian psychologist Robert D. Hare for use in psychology experiments, based partly on Hare's work with male offenders and forensic inmates in Vancouver, and partly on an influential clinical profile by American psychiatrist Hervey M. Cleckley first published in 1941.Īn individual's score may have important consequences for their future, and because the potential for harm if the test is used or administered incorrectly is considerable, Hare argues that the test should be considered valid only if administered by a suitably qualified and experienced clinician under scientifically controlled and licensed, standardized conditions. In addition, sadistic and paranoid traits are usually also present. When you look at the percentage score, remember that over half of respondents will be occupying the middle 20 score range, which means a score which is just 10 higher than the average will be higher that 75 of responses. The psychopath tends to display a constellation or combination of high narcississtic, borderline, and antisocial personality disorder traits, which includes superficial charm, charisma/attractiveness, sexually seductive and promiscuity, affective instability, suicidality, lack of empathy, feelings of emptiness, self-harm, and splitting (black and white thinking). You probably took the PPI which identifies psychopathic traits in non-criminal populations. Test setup information contains test file definition details to support order and result interfacing between Mayo Clinic Laboratories and your Laboratory Information System. It is a 20-item inventory of perceived personality traits and recorded behaviors, intended to be completed on the basis of a semi-structured interview along with a review of "collateral information" such as official records. 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 the personality trait psychopathy in individuals-most often those institutionalized in the criminal justice system-and to differentiate those high in this trait from those with antisocial personality disorder, a related diagnosable disorder.
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