The Revised Psychopathy Checklist: Reliability and Factor Structure

The revised Psychopathy Checklist (PCL) is a 20-item scale scored from interview and file information. Analyses of data from 5 prison samples ( N = 925) and 3 forensic psychiatric samples ( N = 356) indicate that the revised PCL resembles its 22-item predecessor in all important respects. It has exc...

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Bibliographic Details
Published in:Psychological assessment 1990-09, Vol.2 (3), p.338-341
Main Authors: Hare, Robert D, Harpur, Timothy J, Hakstian, A. R, Forth, Adelle E, Hart, Stephen D, Newman, Joseph P
Format: Article
Language:English
Subjects:
Antisocial Personality Disorder
Checklist (Testing)
Factor Structure
Human
Incarcerated
Measurement
Mentally Ill Offenders
Psychopathy
Test Reliability
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Summary:The revised Psychopathy Checklist (PCL) is a 20-item scale scored from interview and file information. Analyses of data from 5 prison samples ( N = 925) and 3 forensic psychiatric samples ( N = 356) indicate that the revised PCL resembles its 22-item predecessor in all important respects. It has excellent psychometric properties, and it measures 2 correlated factors that were cross-validated both within and between samples. Correlations between the original PCL and the revised version approached unity for both the factors and the full scale. We conclude that the revised PCL measures the same construct as the original and that the PCL is a reliable and valid instrument for the assessment of psychopathy in male forensic populations.
ISSN:1040-3590
1939-134X
DOI:10.1037/1040-3590.2.3.338