The predictive and convergent validity of a psychometric battery used to assess sexual offenders in a treatment programme: an 18-year follow-up

Abstract

This study examined sex offender risk and treatment change based on a battery of psychometric assessment measures administered to 267 treated adult Canadian federal sex offenders followed up an average 18 years post release. Several significant pre–post changes that were frequently moderate in magnitude (d>.50) were observed across these measures. A factor analysis of the psychometric battery generated three broad need domains consistent with the extant literature that were labelled Socioemotional Functioning, Anger/Hostility, and Misogynist Attitudes. The three need domains and a Need Total, created by their summation, converged with the Violence Risk Scale—Sexual Offender version (VRS-SO; Wong, Olver, Nicholaichuk, & Gordon, 2003) in conceptually meaningful ways and predicted sexual and violent recidivism to varying degrees. Raw measurements of change obtained from pre-to posttreatment frequently bore weak and non-significant relationships to outcome. However, after creating standardised residual change scores to control for pre-treatment score, treatment changes in the individual measures, need domains and Need Total improved significantly in their prediction of reductions in general and sexual violence.     

Some notes on the validation of VRS-SO static scores

ABSTRACT

The present study was a psychometric examination of Violence Risk Scale-Sexual Offender version (VRS-SO; Wong, S., Olver, M. E., Nicholaichuk, T. P., & Gordon, A. (2003 Wong, S., Olver, M. E., Nicholaichuk, T. P., & Gordon, A. (2003). The violence risk scale: Sexual offender version (VRS-SO). Saskatoon: Regional Psychiatric Centre and University of Saskatchewan. [Google Scholar]). The violence risk scale: Sexual offender version (VRS-SO). Saskatoon: Regional Psychiatric Centre and University of Saskatchewan) static item scores in a Canadian multisite sample of 668 treated adult male sexual offenders. Exploratory factor analysis (EFA) of 13 nonredundant Static-99R and VRS-SO static items generated three factors labelled Youthful Aggression, Sexual Criminality, and General Criminality. The factor and total scores converged with Static-99R and VRS-SO dynamic factor scores. Scores on the VRS-SO static items, EFA-derived factors, and total score each significantly predicted 5- and 10-year sexual, violent, and general recidivism through ROC analyses. Cox regression survival analyses showed all three factors uniquely predicted sexual recidivism to varying degrees in the overall sample; however, only Youthful Aggression and General Criminality uniquely significantly predicted violent and general recidivism in the overall sample and among sexual offender subgroups. Implications for theory, clinical practice, and instrument refinement are discussed.     

Young adult sexual offenders with emerging personality disorders: developmental and offence-related characteristics and treatment engagement

ABSTRACT

In the context of the UK Government’s Offender Personality Disorder (OPD) Strategy, large numbers of high-risk young adult sexual offenders with emerging personality disorders are being screened for inclusion onto specialist intervention pathways (the OPD Pathway). However, little is currently known about the clinical and offence-related needs of this population or their impact on treatment engagement. The current study investigated the developmental, personality and offence-related characteristics of 87 incarcerated young adult sexual offenders, comparing those screened in to the pathway and those not screened in. Fifty per cent of the sample were potentially eligible for the OPD pathway. OPD eligible cases were found to have significantly higher rates of parental difficulties, developmental trauma, and childhood behavioural difficulties and to present with significantly higher rates of previous violent and sexual offences, previous allegations of sexual offences, and to have used physical coercion in their offences. The OPD sample was also significantly less likely to have pre-pubescent victims and more likely to refuse treatment, with over 70% failing to engage with the Sex Offender Treatment Programme (SOTP). SOTP non-engagement among OPD cases was most strongly predicted by categorical offence denial. Comparisons are made with the broader adolescent sexual offender literature.     

Gaze patterns to child figures reflect deviant sexual preference in child sex offenders—a first glance

Abstract

Research on non-offending heterosexual participants has indicated that men's gaze allocation reflects their sexual preference. In this exploratory pilot study we investigated whether naturalistic gaze behaviour is sensitive to deviant sexual preferences. We compared gaze patterns of convicted heterosexual child sex offenders (CSOs; n = 13) with female victims to heterosexual non-offending men (n = 13) in a task of free-viewing images of clothed male and female figures aged 10, 20 and 40 years. CSOs dedicated more fixations to the upper body of the female child than male child figures. The pattern was different for the control sample, whose gaze pattern to male and female figures could only be differentiated when viewing adult figures. CSOs showed significantly greater difference in their gaze towards the upper body of male and female children than non-offenders. Our findings provide preliminary evidence for eye-tracking as a potential method of assessing deviant sexual interest.     

Reflections on the development of the nota policy ‘working with adults and adolescents who exhibit sexually abusive behaviours: The use of sexually salient and pornographic materials’

Abstract

In 1994 the Policy and Ethics Sub-Committee of The National Association for the Development of Work with Sex Offenders developed and published a policy on the use of ‘sexually salient and pornographic’ materials in working with adults and adolescents who exhibited sexually abusive behaviours. Here, Alix Brown, one of the originators of this policy, reflects on the reasons it was brought into being and its relevance to sex offender treatment now. The policy document follows this article.     

Developing a therapeutic environment for boys in secure settings who have sexually offended

Abstract

The role of secure units in helping sexually abusive adolescent boys to change their behaviour and attitudes is examined. The problems presented by 23 adolescent sex offenders at Glenthorne Youth Treatment Centre were used to identify issues for management and treatment. These boys had committed a variety of non-sexual offences, and were responsible for 691 recorded crimes. Many had committed violent offences and had emotional, educational, relationship and substance-abuse problems. In contrast to the situation in community settings, the use of offence-focused groupwork and individual psychological therapy is limited in secure units. Many of these boys are not suited to this kind of work, or are not yet ready to benefit from it. Secure units also have difficulty resourcing these types of intervention. Nevertheless, the secure unit environment can be organised and structured to effect changes in behaviours and attitudes associated with sexual offending. Attention should be given to particular aspects of residential practice, including anti-discriminatory practice, organisational values, establishing behavioural boundaries, challenging unacceptable behaviour and language, reinforcing appropriate behaviour, encouraging interpersonal problem-solving, providing effective supervision based on an evaluation of risk, and education to raise victim awareness and respect for others. Liaison with community programmes for sexually abusive adolescents should be encouraged.     

A case study of a male sex offender with zoosexual interests and behaviours

Abstract

This paper reviews assessment, treatment and supervision issues in relation to a high-risk, borderline functioning, male sex offender with zoosexual interests and behaviours. Mr Z was convicted of multiple sexual offences including rape, indecent assault and indecent exposure as well as actual and threatened bodily harm. He was convicted for two counts of attempted buggery of horses and he received a Probation Order to engage in group and individual work, as deemed appropriate. Significant treatment challenges emerged due to his cognitive/intellectual difficulties, coping problems (including anger management issues) and dissimulation. Further, continuing evidence of high-risk behaviours associated with his index offence as well as previously identified patterns of offending were reported. Ongoing concerns prompted a referral for a polygraph examination to gain additional information about Mr Z's offence history and to achieve a better understanding of his treatment needs. These findings are discussed and specific attention is focused on Mr Z's zoosexual behaviours.     

High‐Throughput STR Analysis for DNA Database Using Direct PCR,

Since the Korean criminal DNA database was launched in 2010, we have focused on establishing an automated DNA database profiling system that analyzes short tandem repeat loci in a high‐throughput and cost‐effective manner. We established a DNA database profiling system without DNA purification using a direct PCR buffer system. The quality of direct PCR procedures was compared with that of conventional PCR system under their respective optimized conditions. The results revealed not only perfect concordance but also an excellent PCR success rate, good electropherogram quality, and an optimal intra/inter‐loci peak height ratio. In particular, the proportion of DNA extraction required due to direct PCR failure could be minimized to <3%. In conclusion, the newly developed direct PCR system can be adopted for automated DNA database profiling systems to replace or supplement conventional PCR system in a time‐ and cost‐saving manner.     

The emergence of restorative justice in Sri Lanka: a review essay

Within the framework of retributive justice, crime is understood as an offence against the State and is defined as a violation of law. It represents the punitive approach of reaction to crime, where the offenders are considered as an unwanted group who should be punished. However, with the development of criminology, offenders are identified as the persons needing rehabilitation and reintegration into the society as law abiding citizens. This novel thinking has paved the way to the establishment of the concept of restorative justice where crime is understood to be an infringement on man and human relationship. It involves reintegration of both the offender and victim within the community. The restorative justice principle could be found in community service orders, probation, parole, and other noncustodial measures as alternatives to the traditional incarceration, victim offender mediation, sentencing, peacemaking and healing circles, police cautions, and active participation of victims in the criminal justice process, and so on. This article evaluates Sri Lanka's transformation from retributive justice to restorative justice by incorporating the above-mentioned means and methods to the criminal justice system. Further, it examines how these innovations have affected the crime rate in Sri Lanka.