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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.
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 ...
The Psychopath Test: A Journey Through the Madness Industry is a 2011 book written by British author Jon Ronson in which he explores the concept of psychopathy, along with the broader mental health "industry" including mental health professionals and the mass media.
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.
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 February 2025. Mental health disorder Not to be confused with Psychosis, Psychopathology, Psychic, or Sycophancy. "Psychopaths" and "Psychopath" redirect here. For other uses, see Psychopath (disambiguation). "Sociopathy" and "Sociopath" redirect here. For another usage of these terms, see antisocial ...
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 ...
When diagnosing psychopathy, the MMPI-2's Psychopathic Deviate scale is considered one of the traditional personality tests that contain subscales relating to psychopathy, though they assess relatively non-specific tendencies towards antisocial or criminal behavior. [39]
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.