Hare Psychopathy Checklist
Hare Psychopathy Checklist
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About This Product
Hare Psychopathy Checklist–Revised: 2nd Edition (PCL–R™: 2nd Edition)
BY ROBERT D HARE, PHD
The second edition of the Hare Psychopathy Checklist–Revised: 2nd Edition (PCL–R: 2nd Edition) supplants its predecessor as the accepted standard for conducting forensic assessments of psychopathy. Revisions are based on the large numbers of articles, reports, presentations and dissertations that have appeared since the original instrument was published in 1991.
The PCL–R: 2nd Edition is a 20-item symptom construct rating scale designed to assess psychopathic (antisocial) personality disorders in forensic populations. The PCL–R: 2nd Edition Rating Booklet facilitates rating the 20-item scale; the QuikScore form is used to record the ratings, obtain the scores, and profile the results. Ratings are based on responses to the semistructured interview and on a review of collateral information.
As in the original version, the PCL–R: 2nd Edition provides a total score that is important for the overall assessment of psychopathy. The total score can be interpreted dimensionally in terms of degree of match to the prototypical psychopath, or it can be used categorically to help identify or diagnose psychopaths.
This new edition retains the two major factors of psychopathy:
- Factor 1: Callous, selfish, remorseless use of others
- Factor 2: Chronically unstable and antisocial lifestyle
The interpretive power of the PCL–R: 2nd Edition has increased through the evolution of four subfactors. Factor 1 and Factor 2 have been divided into two empirically derived and validated subfactors:
- Factor 1a: Interpersonal (4 items)
- Factor1b: Affective (4 items)
- Factor 2a: Impulsive Lifestyle (5 items)
- Factor 2b: Antisocial Behavior (5 items)
The PCL–R: 2nd Edition is highly reliable and is supported by impressive concurrent, predictive, and construct validity. Ratings are made using a semistructured interview and a review of collateral information. Scoring is based on the degree to which a person’s personality and behavior match the Rating Booklet items.
The Manual provides item descriptions, scoring procedures, extensive reliability and validity information, and normative data. New large-sample descriptive and validation data are provided for use of the PCL–R: 2nd Edition with both male and female offenders, substance abusers, sex offenders, African American offenders, and forensic psychiatric clients.
Hare Psychopathy Checklist: Youth Version (PCL:YV™)
BY A. FORTH, PHD, D. KOSSON, PHD, AND R. D. HARE, PHD
The PCL:YV identifies potential patterns of cheating, fighting, bullying, and similar acts in adolescents. It sheds light on factors that lead to antisocial behavior and psychopathy in adults.
The checklist includes four scales:
- Interpersonal
- Affective
- Behavioral
- Antisocial
The clinician conducts a semi-structured interview, eliciting information needed to rate the adolescent in question. He or she then completes the checklist, using a 3-point scale (yes, no, or maybe) to answer each item. Responses can be quickly transferred to a scoring grid, where problematic behavior patterns can be easily spotted and targeted for intervention.
Hare Psychopathy Checklist: Screening Version (PCL: SV™)
BY STEPHEN HART, PHD, DAVID N. COX, PHD, AND ROBERT D. HARE, PHD
The 12-item Hare Psychopathy Checklist: Screening Version (PCL:SV) is an abbreviated and highly correlated version of the PCL–R: 2nd Edition that takes approximately half the time to administer. It’s an efficient and cost-effective tool that screens for the possible presence of psychopathy in both forensic and nonforensic populations. Cutoff scores indicate when to follow up with the more comprehensive instrument.
Scales:
- Interpersonal/Affective
- Social Deviance
- Impulsive Lifestyle
- Antisocial Behavior
Hare Psychopathy–SCAN Research Version (P-SCANTM RV)
BY ROBERT D HARE, PHD, AND HUGUES F. HERVE, MA
The Hare Psychopathy–SCAN Research Version (P–SCAN™ RV) is a useful tool in situations where it is not possible to conduct the PCL–R: 2nd Edition (see opposite page) or the PCL:SV™(see above) assessments. However, it does not provide a clinical diagnosis.
The P–SCAN RV is a 90-item checklist depicting relatively specific behaviors and low-level inferences about individuals. Items are scored on three key facets of psychopathy: Interpersonal, Affective, and Lifestyle. The P–SCAN RV helps individuals in mental health and corrections environments form impressions and draw conclusions on the basis of their knowledge and their experience. It supplements the common sense or reasoned judgments of the experienced user.