A two‐dimensional risk assessment system for sexual offenders was created that can classify them for risk of sexual recidivism, risk of nonsexual violent recidivism, and the composite risk of reconviction for sexual or nonsexual assaults. Receiver operating characteristic (ROC) analyses of separate follow‐up samples were used for cross‐validation. The system is easier to score than Static‐99, and substantially easier to score than the VRAG or SORAG, while yielding comparable predictive accuracy in cross‐validation samples with follow‐ups from 2 years to 19 years. ROC AUC coefficients between .74 and .81 were found for the different scales and samples.

Purpose. The effectiveness of prison‐based cognitive‐behavioural treatment programmes was evaluated using reconviction as the outcome measure. Method. Reconviction rates were compared between two groups of adult male offenders who were serving a custodial sentence of 2 years or more in Her Majesty's Prison Service, England and Wales. The treatment group (N =667) consisted of offenders who had voluntarily participated in one of two treatment programmes that targeted 'cognitive deficits' related to offending behaviour. The comparison group (N =1,801) was made up of offenders who had not participated in the treatment programme but were “matched” to the treatment group on a number of empirically relevant variables. Results. Treatment produced a robust reduction in the probability of reconviction (p < .001) when other relevant variables were controlled for. For treated offenders, the percentage point reduction in reconviction was 14% in medium‐lowrisk offenders and 11% in medium‐high‐risk offenders. Conclusion. These outcome results demonstrate that the principles of effective practice in the field of offender rehabilitation, which were identified through meta‐analytical research predominately in North America, can be applied to a UK offender population to similar effect.

This study evaluated the effectiveness of prison‐based cognitive skills programmes in England and Wales in reducing reconviction. Two‐year reconviction rates were compared for adult male offenders who had participated in a cognitive skills programme between 1996 and 1998 (N = 649) and matched adult male offenders who had not participated (N = 1,947). There were no significant differences in the rates of reconviction between the treatment and matched comparisons. This contrasts with a previous study of prison‐based cognitive skills programmes. Possible explanations for the current finding are discussed. For example, these results may merely reflect expected variation; international experience mirrors the variable reductions in reconviction rates found so far in the evaluation of prison‐based programmes. This evaluation relates to a period when programmes were expanded rapidly, and this may have affected the quality of programme delivery.

Purpose. This study assessed the short‐term impact of offending behaviour programmes in relation to certain key features of programme delivery identified by an accreditation system. The aim was to further inform the debate on ‘What Works’ in practice by establishing whether well‐delivered programmes are more effective. Method. The sample consisted of 5,255 offenders serving custodial sentences in prisons across England and Wales who completed one of two accredited cognitive skills programmes during the financial year 2001/2002. The relationship between a battery of assessment measures, tutor experience, drop‐out rates, audit observations and the quality of programme delivery was explored. Results. A positive short‐term impact was observed on the majority of assessment measures across both programmes. Patterns of change were broadly similar across gender, age, and ethnic groupings. This short‐term impact of the programmes was significantly greater for a group of high‐need prisoners and at those sites where tutors were delivering more frequently. Tutor delivery rates were also found to be related to drop‐out rates and the quality of programme delivery. Attempts to establish a relationship between ratings of tutor performance from video‐monitoring and the short‐term impact of the course were unsuccessful. However, at the programme site level, positive correlations were observed between the quality of delivery and other measures of the site's performance. Conclusion. This study shows that programmes do have a short‐term impact and that this is greater for higher‐need prisoners and at sites where tutors were delivering more frequently. Furthermore, the accreditation system has highlighted key aspects of programme delivery which do appear to influence the short‐term effectiveness of the programmes.

Purpose. Enhanced Thinking Skills (ETS) has been the most widely delivered cognitive skills programme in the prisons of England and Wales. Four quasi-experimental outcome studies have produced mixed results, a qualitative survey of offenders' and facilitators' experience on the programme proved useful in programme refinement, and a study using random allocation provided evidence that ETS impacts significantly and positively on short-term attitudinal change. This study aims to make a further contribution, using another methodology, to the accumulation of evidence.Methods. This was a real-world evaluation, comparing the reconviction outcomes of the population of 17,047 ETS participants in custody from 2000 to 2005 with a national cohort of 19,792 prisoners released over the same period.Results. Overall, prisoners who had attended ETS were found to reoffend at a rate 6.4 percentage points less than the cohort (rising to 7.5 percentage points for programme completers) and 9.5 percentage points less than the predicted rate. In all but the very highest risk group and in every sentence length band, the reoffending outcomes for ETS participants were significantly better than for prisoners in the cohort. Conclusions.It is argued that this non-experimental methodology makes a contribution to the 'What Works' evidence.Since the early 1990s, the Prison and Probation Services in England and Wales, now merged to form the National Offender Management Service (NOMS), have significantly invested in the delivery of offending behaviour programmes (OBPs) designed to reduce reoffending. These programmes address those attitudes and behaviours identified as This article 'Reconviction following a cognitive skills intervention: An alternative quasi-experimental methodology' was written