Applicability, reliability and validity of the Psychopathy Checklist-Revised in offenders with intellectual disabilities: Some initial findings
Morrissey, Catrin Hogue, Todd E. Mooney, Paul Johnston, Susan J.
Morrissey, Catrin
Hogue, Todd E.
Mooney, Paul
Johnston, Susan J.
Abstract
As apart 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. (PsycINFO Database Record (c) 2016 APA, all rights reserved)(journal abstract)
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Date
2005
Type
Article
Subject
Intellectual disability, Antisocial personality disorder, Mentally ill offenders, High security facilities, Medium security facilities, Low security facilities, Community mental health service, Checklist
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Citation
Morrissey, C., Hogue, T. E., Mooney, P., Lindsay, W. R., Steptoe, L., Taylor, J. & Johnston, S. J. (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.