A Comparison of Factor Models on the PCL-R With Mentally Disordered Offenders: The Development of a Four-Factor Model
Department of Psychiatry
Medical Subject Headings
Antisocial Personality Disorder; Psychiatric Status Rating Scales; Violence
Health Services Research | Mental and Social Health | Psychiatric and Mental Health | Psychiatry | Psychiatry and Psychology
For more than a decade, researchers and practitioners have generally accepted a two-factor model for the Psychopathy Checklist-Revised (PCL-R) composed of core personality features and an antisocial lifestyle. Very recently, Cooke and Michie (2001) proposed a three-factor solution that divided the core personality features into two dimensions while eliminating antisocial behavior. This study of male, mentally disordered offenders (N = 96) directly compared factor models via confirmatory factor analysis (CFA). When using testlets to combine theoretically similar items into single ratings, the nested three-factor model was an excellent fit. Of importance, the development of a four-factor model with the inclusion of antisocial items also produced an excellent fit. Combined with recent research, these findings have important ramifications for the construct validity of the PCL-R.
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Citation: Michael J. Vitacco, Richard Rogers, Craig S. Neumann, Kimberly S. Harrison, and Gina Vincent. A Comparison of Factor Models on the PCL-R With Mentally Disordered Offenders: The Development of a Four-Factor Model. Criminal Justice and Behavior October 2005 32: 526-545, doi:10.1177/0093854805278414.
Vitacco, Michael J.; Rogers, Richard; Neumann, Craig S.; Harrison, Kimberly S.; and Vincent, Gina M., "A Comparison of Factor Models on the PCL-R With Mentally Disordered Offenders: The Development of a Four-Factor Model" (2005). Systems and Psychosocial Advances Research Center Publications and Presentations. 366.