Applicability of traditional and revised models of psychopathy to the Psychopathy Checklist: screening version |
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Authors: | Skeem Jennifer L Mulvey Edward P Grisso Thomas |
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Affiliation: | Department of Psychology, University of Nevada, Las Vegas, Box 455030, 4505 Maryland Parkway, Las Vegas, Nevada 89154-5030, USA. skeem@unlv.edu |
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Abstract: | Recently, psychopathy has become virtually synonymous with the Psychopathy Checklist (PCL) measures. However, the "gold standard" 2-factor model that underlines these measures has been questioned for its uncertain empirical support and emphasis on antisocial behavior that is not specific to psychopathic personality deviation. This study (N = 870 civil psychiatric patients) compares the fit of the traditional 2-factor model with that of a revised 3-factor model of psychopathy. The revised model better describes the structure of the Screening Version of the PCL (PCL:SV) than the traditional model. Although the revised model's exclusion of some items that assess antisocial behavior reduces the PCL:SV's power in predicting patient violence, this model arguably assesses psychopathy in a more specific, theoretically coherent fashion that may reduce misapplications of the construct. Implications for future research are discussed. |
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