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Predicting violent infractions in a Swiss state penitentiary : a replication study of the PCL-R in a population of sex and violent offenders

Predicting violent infractions in a Swiss state penitentiary : a replication study of the PCL-R in a population of sex and violent offenders

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ENDRASS, Jérôme, Astrid ROSSEGGER, Frank URBANIOK, Arja LAUBACHER, Stefan VETTER, 2008. Predicting violent infractions in a Swiss state penitentiary : a replication study of the PCL-R in a population of sex and violent offenders. In: BMC Psychiatry. 8, 74. eISSN 1471-244X. Available under: doi: 10.1186/1471-244X-8-74

@article{Endrass2008-12Predi-38560, title={Predicting violent infractions in a Swiss state penitentiary : a replication study of the PCL-R in a population of sex and violent offenders}, year={2008}, doi={10.1186/1471-244X-8-74}, volume={8}, journal={BMC Psychiatry}, author={Endrass, Jérôme and Rossegger, Astrid and Urbaniok, Frank and Laubacher, Arja and Vetter, Stefan}, note={Article Number: 74} }

eng Rossegger, Astrid Endrass, Jérôme Urbaniok, Frank Urbaniok, Frank 2017-04-21T12:53:43Z Vetter, Stefan Laubacher, Arja 2017-04-21T12:53:43Z Rossegger, Astrid Background<br /><br /><br />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.<br /><br />Methods<br /><br />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.<br /><br />Results<br /><br />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.<br /><br />Conclusion<br /><br />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. Laubacher, Arja Predicting violent infractions in a Swiss state penitentiary : a replication study of the PCL-R in a population of sex and violent offenders 2008-12 Endrass, Jérôme Vetter, Stefan

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