Predicting Institutional Violence in Offenders with Intellectual Disabilities: The Predictive Efficacy of the VRAG and the HCR-20

Autor/inn/en	Fitzgerald, Suzanne; Gray, Nicola S.; Alexander, Regi T.; Bagshaw, Ruth; Chesterman, Paul; Huckle, Phillip; Jones, Susan K.; Taylor, John; Williams, Tegwyn; Snowden, Robert J.
Titel	Predicting Institutional Violence in Offenders with Intellectual Disabilities: The Predictive Efficacy of the VRAG and the HCR-20
Quelle	In: Journal of Applied Research in Intellectual Disabilities, 26 (2013) 5, S.384-393 (10 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1360-2322
DOI	10.1111/jar.12032
Schlagwörter	Violence; Institutionalized Persons; Correctional Institutions; Foreign Countries; Prediction; Aggression; Risk Assessment; Criminals; Effect Size; Evaluation Methods; Test Validity; Mental Retardation; At Risk Persons; Predictive Validity; United Kingdom + Suchen Sie Ihr Suchwort? Gewalt; Jugendstrafvollzug; Ausland; Vorhersage; Risikoabschätzung; Straftäter; Testvalidität; Geistige Behinderung; Risikogruppe; Großbritannien
Abstract	Background: There is a developing evidence base to support the use of risk assessment instruments in offenders with intellectual disability (ID). The aim of this study was to try to develop this literature with the inclusion of a control group of mentally disordered offenders without an ID, using the HCR-20 and VRAG. Materials and Methods: The VRAG and the HCR-20 were completed for a group of offenders with an ID (n = 25) and a control group (n = 45), in four medium-secure units across the UK. The outcome measure was physical aggression measured over 6 months. Results: Both instruments consistently produced large effect sizes predicting any physical aggression and severe physical aggression. The structured clinical judgement based on the HCR-20 was especially good. Conclusions: The HCR-20 and the VRAG have excellent predictive efficacy in offenders with an ID. A structured clinical judgement based on the HCR-20 was especially predictive. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10