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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 ...
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 ...
The Psychopathic Personality Inventory (PPI-Revised) is a personality test for traits associated with psychopathy in adults. The PPI was developed by Scott Lilienfeld and Brian Andrews to assess these traits in non-criminal (e.g. university students) populations, though it is still used in clinical (e.g. incarcerated) populations as well.
The Levenson Self-Report Psychopathy scale (LSRP) is a 26-item, 4-point Likert scale, self-report inventory to measure primary and secondary psychopathy in non-institutionalized populations. It was developed in 1995 by Michael R. Levenson, Kent A. Kiehl and Cory M. Fitzpatrick.
Robert D. Hare CM (born 1 January 1934) is a Canadian forensic psychologist, known for his research in the field of criminal psychology.He is a professor emeritus of the University of British Columbia where he specializes in psychopathology and psychophysiology.
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In this study, the participants completed the DTDD each week for three weeks. The average test-retest correlation was high: DTDD = 0.89, Machiavellianism = 0.86, psychopathy = 0.76, narcissism = 0.87. [1] The item-level temporal reliability refers to whether responses of each item on the questionnaire retains stability across time.
Individuals who have narcissistic personality disorder, malignant narcissism, and psychopathy all exhibit similar symptoms, as detailed in the Hare Psychopathy Checklist. The test consists of 20 items that are scored on a three-point scale, with a score of 0 indicating that it does not apply at all, 1 indicating a partial match or mixed ...