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Comparing STATIC-99R and STABLE-2007 between persons with and without intellectual disabilities

Monique Delforterie (Trajectum, Zwolle, The Netherlands)
Jan Willem van den Berg (Forensic Care Specialists, Utrecht, The Netherlands) (Transfore/De Tender, Deventer, The Netherlands) (Catholic University of Leuven, Leuven, Belgium)
Betto Bolt (Trajectum, Zwolle, The Netherlands)
Teunis van den Hazel (Trajectum, Zwolle, The Netherlands)
Leam Craig (Forensic Psychology Practice Ltd, Sutton Coldfield, Birmingham, UK) (Centre for Applied Psychology, University of Birmingham, Birmingham, UK) (School of Social Sciences, Birmingham City University, Birmingham, UK)
Robert Didden (Trajectum, Zwolle, The Netherlands) (Radboud University, Nijmegen, The Netherlands)

Journal of Intellectual Disabilities and Offending Behaviour

ISSN: 2050-8824

Article publication date: 26 September 2019

Issue publication date: 4 October 2019

Abstract

Purpose

While there is a significant proportion of people with a mild intellectual disability (MID) or borderline intellectual functioning (BIF) who commit sexual offenses, little research has focused on the risk factors for sexual recidivism in people with MID-BIF. The purpose of this paper is to compare the scores on the STATIC-99R and STABLE-2007 between persons with sexual offense histories with and without MID-BIF.

Design/methodology/approach

Data using the STATIC-99R and STABLE-2007 were collected in 85 male patients divided into an MID-BIF group (IQ 50–85, n=50) and comparison group (IQ>95, n=35).

Findings

The MID-BIF group and comparison group did not differ significantly on the static risk factors and total score of the STATIC-99R. However, of the 13 dynamic risk factors of the STABLE-2007, the MID-BIF group scored significantly higher on the items Impulsive acts, Poor problem solving skills and Lack of concern for others, while the comparison group scored significantly higher on the item Deviant sexual preference.

Originality/value

The higher score on a number of dynamic risk factors for patients with MID-BIF could partly be explained by the characteristics associated with MID-BIF. Although dynamic criminogenic risk factors which are usually identified as targets for treatment appear the same for people with and without MID-BIF who commit sexual offenses, adaptations to the modality of treatment will still need to be made for people with MID-BIF.

Keywords

Citation

Delforterie, M., van den Berg, J.W., Bolt, B., van den Hazel, T., Craig, L. and Didden, R. (2019), "Comparing STATIC-99R and STABLE-2007 between persons with and without intellectual disabilities", Journal of Intellectual Disabilities and Offending Behaviour, Vol. 10 No. 3, pp. 58-68. https://doi.org/10.1108/JIDOB-01-2019-0003

Publisher

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Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited