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Structural models of psychopathy.

Robert D Hare1, Craig S Neumann

  • 1Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC V6T 1Z4, Canada. rhare@interchange.ubc.ca

Current Psychiatry Reports
|February 19, 2005
PubMed
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Psychopathy Checklist-Revised (PCL-R) research reveals four core factors: Interpersonal, Affective, Lifestyle, and Antisocial. These traits are dimensional, representing extreme variants of normal personality, challenging purely trait-based models.

Area of Science:

  • Psychology
  • Forensic Psychology
  • Personality Science

Background:

  • Psychopathy is traditionally defined by personality traits and behaviors.
  • The Psychopathy Checklist-Revised (PCL-R) is the standard assessment tool.
  • The PCL-R's structural properties are crucial for research and clinical applications.

Purpose of the Study:

  • To examine the structural properties of the PCL-R and its derivatives.
  • To propose a factor structure for psychopathy assessment.
  • To investigate the dimensional nature of psychopathy.

Main Methods:

  • Factor analysis
  • Item response theory
  • Multidimensional scaling

Main Results:

Related Experiment Videos

  • The PCL-R and its derivatives are underpinned by at least four correlated factors: Interpersonal, Affective, Lifestyle, and Antisocial.
  • Antisocial behaviors are not merely downstream manifestations of central traits; development is interactive.
  • Evidence suggests psychopathy and its factors are dimensional, akin to extreme normal personality variants.

Conclusions:

  • The four-factor model provides a more accurate structural representation of psychopathy.
  • Psychopathy's development involves reciprocal interactions between traits and behaviors.
  • Viewing psychopathy as dimensional aligns with broader personality research.