Applicability, reliability and validity of the psychopathy checklist-revised in offenders with intellectual disabilities: some initial findings

Morrisey, Catrin and Hogue, Todd and Mooney, Paul and Lindsay, William R and Steptoe, Lesley and Taylor, John and Johnston, Susan (2005) Applicability, reliability and validity of the psychopathy checklist-revised in offenders with intellectual disabilities: some initial findings. International Journal of Forensic Mental Health, 4 (2). pp. 207-220. ISSN 1499-9013

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Applicability, reliability and validity of the psychopathy checklist-revised in offenders with intellectual disabilities: some initial findings
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Abstract

As a part of a larger study, the Psychopathy Checklist-Revised (PCL-R) was used to assess psychopathy in
203 individuals from three UK National Health Service settings for offenders with intellectual disabilities
(ID): a high security hospital, a medium and low security hospital and a community based service. The
PCL-R was rated from file review combined with a clinician interview. Internal consistency and inter-rater
reliability were acceptable, and broadly comparable to that reported for other offender populations. The
instrument was also associated in largely expected ways with level of security, and with measures of antisocial
personality disorder, risk, and current behavioural functioning, providing some preliminary indications of
convergent validity. However, further empirical investigation is required before the PCL-R can be used with
confidence to make clinical and risk-based decisions in this population.

Item Type:Article
Additional Information:As a part of a larger study, the Psychopathy Checklist-Revised (PCL-R) was used to assess psychopathy in 203 individuals from three UK National Health Service settings for offenders with intellectual disabilities (ID): a high security hospital, a medium and low security hospital and a community based service. The PCL-R was rated from file review combined with a clinician interview. Internal consistency and inter-rater reliability were acceptable, and broadly comparable to that reported for other offender populations. The instrument was also associated in largely expected ways with level of security, and with measures of antisocial personality disorder, risk, and current behavioural functioning, providing some preliminary indications of convergent validity. However, further empirical investigation is required before the PCL-R can be used with confidence to make clinical and risk-based decisions in this population.
Keywords:Forensic Psychology
Subjects:C Biological Sciences > C800 Psychology
C Biological Sciences > C890 Psychology not elsewhere classified
Divisions:College of Social Science > School of Psychology
ID Code:2861
Deposited By: Alison Wilson
Deposited On:10 Jul 2010 18:56
Last Modified:13 Mar 2013 08:41

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