In this study, the predictive and incremental validity of the Stable-2007 beyond the Static-99 was evaluated in an updated sample of N = 638 adult male sexual offenders followed-up for an average of M = 8.2 years. Data were collected at the Federal Evaluation Center for Violent and Sexual Offenders (FECVSO) in Austria within a prospective-longitudinal research design. Scores and risk categories of the Static-99 (AUC = .721; p < .001) and of the Stable-2007 (AUC = .623, p = .005) were found to be significantly related to sexual recidivism. The Stable-2007 risk categories contributed incrementally to the prediction of sexual recidivism beyond the Static-99. Analyzing the dimensional structure of the Stable-2007 yielded three factors, named Antisociality, Sexual Deviance, and Hypersexuality. Antisociality and Sexual Deviance were significant predictors for sexual recidivism. Sexual Deviance was negatively associated with non-sexual violent recidivism. Comparisons with latent dimensions of other risk assessment instruments are made and implications for applied risk assessment are discussed.

The aim of the present study was to examine the psychometric properties of the German version of the revised Violence Risk Appraisal Guide (VRAG), the VRAG-R. Therefore, VRAG-R ratings were made retrospectively in an Austrian sample of 534 individuals convicted of a sexual offense who were followed up with an average of 7.62 years. The VRAG-R showed large effect sizes for the predictive accuracy of violent (AUC = .75) and general recidivism (AUC = .78) and significant but rather small effect sizes (AUC = .63 and .61, respectively) in predicting any sexual and sexual contact recidivism. Furthermore, for the prediction of violent recidivism but not for sexual recidivism the VRAG-R was incrementally predictive beyond the Sex Offender Risk Appraisal Guide (SORAG) and the Static-99. Finally, the VRAG-R absolute recidivism rates for the risk bins showed satisfactory calibration properties. Taken together, the results of the present study support the cross-national utility of the VRAG-R and its use in applied risk assessment settings also in German-speaking countries.

No abstract

Acute dynamic risk factors can change over short periods of time, even within days or hours. When making risk assessments of individuals convicted of sexual offenses, it is necessary to consider this rapidity of change, in order to monitor appropriately the recidivism risk and to prevent future crimes. Until now, there is only one instrument-the Acute-2007-which assesses acute risk factors in individuals convicted of sexual offenses. However, the current state of research about its psychometric properties is still limited. The aim of the present study was to examine the German version of the Acute-2007 in a final sample of N = 534 adult male individuals convicted of a sexual offense in Germany. Within a prospective-longitudinal field study, appropriately trained parole officers used the Acute-2007 directly after a case was allocated to them. By using an average follow-up period of M = 3.83 years, recidivism data were drawn from the Federal Central Criminal Register of the Federal Office of Justice. Results revealed that the Acute-2007 predicted moderately general (AUC = .64), sexual (AUC = .64), and violent (AUC = .64) recidivism. By using Cox regression analysis, the Acute-2007 significantly predicted the time periods until a sexual reoffense. Furthermore, the Acute-2007 added incremental predictive validity beyond the Static-99 in the prediction of sexual recidivism. Taken together, the results of the present study support the relevance of acute dynamic risk factors in risk assessment and management of individuals convicted of sexual offenses. Public Significance StatementIn order to prevent sexual offenses, it is crucial to develop instruments, which could assess the risk of reoffending in individuals already convicted of sexual offenses. The present results confirmed previous research, which has provided repeatedly evidence for the importance of unchangeable static risk factors. Furthermore, the relevance of rapidly changing acute dynamic risk factors, which have been much less researched until now, could be also supported.

Background: There is a high demand for evidence-based and cost-effective treatment concepts for convicted individuals who sexually abused children (ISAC) and individuals who consumed child sexual exploitation material (ICCSEM) under community supervision (CS). The @myTabu-consortium developed a guided web-based intervention for convicted ISAC and ICCSEM under CS consisting of six online modules targeting psychological meaningful risk factors. The study aims to evaluate the effectiveness of this guided web-based intervention in reducing dynamic risk factors and the risk to re-offend compared to a placebo condition. Furthermore, these dynamic risk factors are measured before and after every module to evaluate their individual effectiveness to reduce the respective risk factor as well as risk to re-offend. This clinical trial protocol describes the planned methods as well as the intervention concept.Methods: The methodological design is a placebo controlled randomized add-on trial (N = 582) with follow-ups at 8 points in time. The placebo condition controls for attention and expectation effects and comprises the same amount of modules with a comparable temporal effort as the experimental intervention. The trial is conducted as an add-on to community supervision as usually done. Primary outcomes are dynamic risk factors assessed by self-report risk assessment tools and officially recorded re-offenses.Discussion: To the best of our knowledge, the study is the first to compare the (cost-) effectiveness of a guided web-based intervention for convicted ISAC and ICCSEM under community supervision against a placebo condition. Methodological limitations (e.g., potential ceiling- or volunteers-effects) are discussed.Clinical Trial Registration: German Clinical Trial Register (DRKS 00021256). Prospectively registered: 24.04.2020.