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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-6866

Endrass, J; Rossegger, A; Urbaniok, F; Laubacher, A; Vetter, S (2008). Predicting violent infractions in a Swiss state penitentiary: a replication study of the PCL-R in a population of sex and violent offenders. BMC Psychiatry, 8:74:1-7.

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Abstract

BACKGROUND: Research conducted with forensic psychiatric patients found moderate correlations between violence in institutions and psychopathy. It is unclear though, whether the PCL-R is an accurate instrument for predicting aggressive behavior in prisons. Results seem to indicate that the instrument is better suited for predicting verbal rather than physical aggression of prison inmates. METHODS: PCL-R scores were assessed for a sample of 113 imprisoned sex and violent offenders in Switzerland. Logistic regression analyses were used to estimate physical and verbal aggression as a function of the PCL-R sum score. Additionally, stratified analyses were conducted for Factor 1 and 2. Infractions were analyzed as to their motives and consequences. RESULTS: The mean score of the PCL-R was 12 points. Neither the relationship between physical aggression and the sum score of the PCL-R, nor the relationship between physical aggression and either of the two factors of the PCL-R were significant. Both the sum score and Factor 1 predicted the occurrence of verbal aggression (AUC=0.70 and 0.69), while Factor 2 did not. CONCLUSION: Possible explanations are discussed for the weak relationship between PCL-R scores and physically aggressive behavior during imprisonment. Some authors have discussed whether the low base rate of violent infractions can be considered an explanation for the non-significant relation between PCL-R-score and violence. The base rate in this study, however, with 27%, was not low. It is proposed that the distinction between reactive and instrumental motives of institutional violence must be considered when examining the usefulness of the PCL-R in predicting in-prison physical aggressive behavior.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Psychiatric University Hospital Zurich > Clinic for Clinical and Social Psychiatry Zurich West (former)
DDC:610 Medicine & health
Language:English
Date:08 September 2008
Deposited On:03 Jan 2009 20:05
Last Modified:27 Nov 2013 19:33
Publisher:BioMed Central
ISSN:1471-244X
Additional Information:Free full text article
Publisher DOI:10.1186/1471-244X-8-74
PubMed ID:18778472
Citations:Web of Science®. Times Cited: 6
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