Machine Learning and Risk Assessment: Random Forest Does Not Outperform Logistic Regression in the Prediction of Sexual Recidivism.

Although many studies supported the use of actuarial risk assessment instruments (ARAIs) because they outperformed unstructured judgments, it remains an ongoing challenge to seek potentials for improvement of their predictive performance. Machine learning (ML) algorithms, like random forests, are able to detect patterns in data useful for prediction purposes without explicitly programming them (e.g., by considering nonlinear effects between risk factors and the criterion). Therefore, the current study aims to compare conventional logistic regression analyses with the random forest algorithm on a sample of N = 511 adult male individuals convicted of sexual offenses. Data were collected at the Federal Evaluation Center for Violent and Sexual Offenders in Austria within a prospective-longitudinal research design and participants were followed-up for an average of M = 8.2 years. The Static-99, containing static risk factors, and the Stable-2007, containing stable dynamic risk factors, were included as predictors. The results demonstrated no superior predictive performance of the random forest compared with logistic regression; furthermore, methods of interpretable ML did not point to any robust nonlinear effects. Altogether, results supported the statistical use of logistic regression for the development and clinical application of ARAIs.

The prevalence of mental disorders among incarcerated adult men convicted of child sexual exploitation material offences.

OBJECTIVE: Despite the growing body of research on individuals convicted of child sexual exploitation material (CSEM), relatively little is known about the prevalence of mental disorders in this population. The aim of the present study was to describe the prevalence of mental disorders among individuals convicted of CSEM offenses. METHODS: This cross-sectional study examined data from 66 individuals serving a sentence for CSEM offenses in the Austrian prison system who underwent a clinical assessment between 2002 and 2020. Diagnoses were based on the German version of the Structured Clinical Interview for Axis I and Axis II disorders. RESULTS: In the total sample, n = 53 individuals (80.3%) were diagnosed with a mental disorder. Twenty-seven individuals (40.9%) had an Axis I disorder and n = 47 (71.2%) had an Axis II disorder. More than two-thirds of the sample, n = 47 (71.2%), had a personality disorder diagnosis, with cluster B personality disorders being the most frequent mental disorders. More than half of the sample, n = 43 (65.2%), had a diagnosis of pedophilic disorder, of which n = 9 (13.6%) were of the exclusive type. Twenty-eight persons (42.4%) showed evidence of a hypersexual disorder. CONCLUSIONS: In line with previous research, the present sample of convicted CSEM offenders showed a comparatively high prevalence of personality disorders and paraphilic disorders, particularly pedophilic disorders. Additionally, the rate of hypersexual disorder symptoms was considerably high. These findings should be considered for the development of successful risk management strategies for this population.

Are mental disorders associated with recidivism in men convicted of sexual offenses?

INTRODUCTION: In offending populations, prevalence rates of mental disorders are much higher than in the general population. Nevertheless, it is unclear whether mental disorders can improve the prediction of recidivism beyond actuarial risk assessment tools. METHODS: The present prospective-longitudinal study was conducted between 2001 and 2021 and included 1066 men convicted of sexual offenses in Austria. All participants were evaluated with actuarial risk assessment tools for the prediction of sexual and violent recidivism and the Structured Clinical Interview for Axis I and Axis II disorders. Sexual and violent reconvictions were assessed. RESULTS: Exhibitionism and an exclusive pedophilia showed the strongest correlations with sexual recidivism in the total sample. In the child related offense subsample additionally a narcissistic personality disorder was correlated with sexual recidivism. The strongest correlation with violent recidivism was found for an antisocial and borderline personality disorder. None of the mental disorders could improve the prediction of recidivism beyond actuarial risk assessment tools. CONCLUSION: Common current actuarial risk assessment tools revealed good predictive accuracy in men convicted of sexual offenses. With few exceptions mental disorders were only weakly associated with recidivism, suggesting that there is no direct link between mental disorders and violent and sexual reoffending. Mental disorders should nevertheless be considered in treatment issues.

A Moderated Mediation Analysis to Further Examine the Role of Verbal Intelligence in the Association Between Psychopathic Personality and Crime.

The current study examined the association between psychopathy, criminal behavior, and the role of verbal intelligence. One promising approach is to examine alternative links between psychopathic traits and criminality like moderation and mediation effects by considering the potential relevance of verbal intelligence as a possible moderating variable. We hypothesized that psychopathic traits linearly predict antisocial behavior (ASB) but that a conviction because of ASB is moderated by verbal intelligence. To test a path model of this hypothesis, N = 305 participants (42% women; n = 172 inmates of German correctional facilities) filled in questionnaires to assess psychopathic traits, ASB, criminal behavior, and verbal intelligence. The moderated mediation analysis revealed that high psychopathic traits go along with a higher number of ASB, whereas individuals with higher verbal intelligence were more likely to evade detection, thus being more successful in their antisocial acts. These results sheds further light on the construct of adaptive psychopathy, supporting the notion that also non-incarcerated psychopathic individuals act highly antisocial. Only separate factors like verbal intelligence might mitigate negative consequences. Further implications for the concept of successful psychopathy are discussed.

A comparison of the predictive accuracy of structured and unstructured risk assessment methods for the prediction of recidivism in individuals convicted of sexual and violent offense.

One of the most commonly replicated results in the research area of recidivism risk assessment is the superiority of structured and standardized prediction methods in comparison to unstructured, subjective, intuitive, or impressionistic clinical judgments. However, the quality of evidence supporting this conclusion is partly still controversially discussed because studies including direct comparisons of the predictive accuracy of unstructured and structured risk assessment methods have been relatively rarely conducted. Therefore, we examined in the present study retrospectively N = 416 expert witness reports written about individuals convicted of violent and/or sexual offenses in Germany between 1999 and 2015. The predictive accuracy of different methodological approaches of risk assessment (subjective clinical [i.e., unstructured clinical judgment; UCJ], structured professional judgment [SPJ], actuarial risk assessment instruments [ARAIs], and combinations of ARAIs-/SPJ-based risk assessments) was compared by analyzing the actual reoffenses according to the Federal Central Register (average follow-up period M = 7.08 years). In accordance with previously published results, the results indicated a higher predictive accuracy for structured compared to unstructured risk assessment approaches for the prediction of general, violent, and sexual recidivism. Taken together, the findings underline the limited accuracy of UCJs and provided further support for the use of structured and standardized risk assessment procedures in the area of crime and delinquency. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Survey on the Prescription Patterns of Pharmacological Agents in Individuals Who Have Committed Sexual Offenses During Forensic Outpatient Treatment in Germany: How Many Discontinue Testosterone Lowering Medication Under Parole?

BACKGROUND: The number of individuals who sexually offended, and who are continued to be treated with pharmacological agents to reduce sex drive after their release from prison or forensic psychiatry, are not known. Furthermore, figures on the number of those who stop their sexdrive supressing antiandrogen treatment in the outpatient setting are unknown as well. This is of central importance though as it might be associated with an increased risk of recidivism. AIM: To assess prescription patterns as well as adherence to pharmacological treatment in outpatient clinics in Germany for individuals who have sexually offended and were released from prison or forensic psychiatric hospital. METHODS: A self-constructed online survey assessing the pharmacological treatment modalities was sent by e-mail to n = 103 forensic outpatient clinics in Germany. Thirty-three (32.0%) completed the questionnaire and reported about 834 patients. OUTCOMES: Prevalence of the use of different pharmacological agents in the treatment of individuals convicted for sexual offenses as well as the number of patients who have discontinued testosterone-lowering medication (TLM). RESULTS: Among all institutions, 22.4% (n = 187) of individuals received pharmacological treatment, with 40.1% receiving gonadotropin-releasing-hormone-agonists, 26.2% antipsychotics, 24.6% selective serotonin reuptake inhibitors, 6.4% cyproterone acetate, and 2.7% a combination of gonadotropin-releasing-hormone-agonists and cyproterone acetate. A significant positive correlation was found between the number of patients released from a forensic-psychiatric hospital and the number of patients treated with TLM. Within 1 year 8.6% (n = 16) stopped their TLM during or at the end of the supervision period, most of them against treatment providers advice. CLINICAL IMPLICATIONS: Substantial regional differences indicate uncertainties regarding the prescription of pharmacological agents for outpatients who have committed sexual offences in Germany. The discontinuiation of TLM within the first year of treatment against treatment providers advise in a substantial proportion of patients could be associated with a serious risk for reoffending. STRENGTHS & LIMITATIONS: The present survey captures prevalences of the pharmacotherapy in forensic aftercare facilities for individuals who have offended sexually, and is the first to record the number of discontinuations. This is a cross-sectional survey covering only 1 country, but includes a large number of individuals. CONCLUSION: Even though the number of treated individuals has increased in prisons, the majority of pharmacological treatment is still provided by forensic hospitals, which then translates into the outpatient setting. The number of those who stop taking such medication is a highly relevant topic for both forensic treatment providers and legal decision makers Sauter J, Rettenberger M, Briken P, et al. Survey on the Prescription Patterns of Pharmacological Agents in Individuals Who Have Committed Sexual Offenses During Forensic Outpatient Treatment in Germany: How Many Discontinue Testosterone Lowering Medication Under Parole?. J Sex Med 2022;19:1147-1155.

A field study of acute dynamic risk assessment in individuals convicted of sexual offenses.

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. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

The predictive and incremental validity of ADHD beyond the VRAG-R in a high-risk sample of young offenders.

The VRAG-R is a well-established actuarial risk-assessment instrument, which was originally developed for assessing violent recidivism risk in adult male offenders. Whether or not the VRAG-R can also predict violent recidivism in young offenders is unclear so far. In the emergence of juvenile offending, attention-deficit/hyperactivity disorder (ADHD) seems to be of major importance suggesting that it could be relevant for risk assessment as well. Thus, we examined the predictive accuracy of the VRAG-R in a high-risk sample of N = 106 (M = 18.3 years, SD = 1.8) young offenders and assessed the incremental predictive validity of ADHD symptomatology beyond the VRAG-R. Within a mean follow-up time of M = 13 years (SD = 1.2), n = 65 (62.5%) young offenders recidivated with a violent offense. We found large effect sizes for the prediction of violent and general recidivism and re-incarcerations using the VRAG-R sum scores. Current ADHD symptomatology added incremental predictive validity beyond the VRAG-R sum scores concerning the prediction of general recidivism but not of violent recidivism. The results supported the use of the VRAG-R for predicting violent recidivism in young offenders. Because ADHD symptomatology improves the predictive performance of the VRAG-R regarding general recidivism, we argue that addressing ADHD symptoms more intensively in the juvenile justice system is of particular importance concerning a successful long-term risk management in adolescents and young adults.

[Aggressiveness, assertiveness, and sexual deviance: An empirical-quantitative examination of Stoller's perversion theory]. / Aggressivität, Assertivität und sexuelle Devianz: Eine empirisch-quantitative Prüfung der Stoller'schen Perversionstheorie.

Aggressiveness, assertiveness, and sexual deviance: An empirical-quantitative examination of Stoller's perversion theory Objectives: The main aim of the present study was to empirically examinate the psychodynamic-founded perversion theory of Robert D. Stoller (1979), particularly his assumption of a transformation of aggressive impulses into sexual deviant fantasies due to traumatic experiences. Methods: In the present study different aspects of the theory were examined by using a sample (N = 954) of individuals convicted of sexually motivated offenses who had been clinically and forensically assessed between 2002 and 2018 at the Federal Evaluation Centre for Violent and Sexual Offenders (FECVSO) in the Austrian Prison System. As a part of the psychological testing procedure, German-speaking questionnaires for the assessment of aggressiveness and assertiveness were applied. Results: The results indicated that participants with a diagnosis of paraphilia showed significantly less spontaneously expressed aggression and less social competence compared to individuals without such a diagnosis. Conclusions: The findings of the present study are in line with the core assumptions of Stoller's perversion theory by demonstrating an inverse relationship between the diagnosis of paraphilia and self-reported aggression.

Triarchic Psychopathy Measure: Convergent and discriminant validity in a correctional treatment setting.

The standard measure of assessment of psychopathy in forensic and correctional settings is the Hare Psychopathy Checklist-Revised (PCL-R), an observer-rating instrument assessing 4 facets of psychopathy: Interpersonal, Affective, Lifestyle, and Antisocial. The relatively new triarchic model of psychopathy, in contrast, consists of 3 factors: Boldness, Meanness, and Disinhibition measured with a self-report questionnaire, Triarchic Psychopathy Measure (TriPM). The evidence for the utility of the TriPM questionnaire in forensic or correctional settings is still scarce. Therefore, the current study was conducted to examine the convergence of the TriPM questionnaire with the PCL-R and interpersonal psychopathic behavior ratings based on the Interpersonal Measure of Psychopathy in a sample of German adult male prison inmates undergoing a correctional treatment (N = 152). To test the construct validity with external criteria, measures for impulsiveness and self-efficacy were used. Overall, the results were rather equivocal regarding the validity of the TriPM. The TriPM Boldness scale was not significantly correlated with the PCL-R but only with the Interpersonal Measure of Psychopathy Grandiosity and Self-Efficacy. The TriPM Meanness scale and Disinhibition were strongly correlated and showed a similar correlative pattern with the PCL-R Lifestyle and Antisocial facets. Thus, the construct coverage of the TriPM and the added value for measuring psychopathic traits using the TriPM in correctional settings remains inconclusive. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Predictors of Sexual Satisfaction in Women: A Systematic Review.

INTRODUCTION: The increasing research interest in sexual satisfaction corresponds to a large amount of studies which focus on different singular determinants without establishing a common model for its explanation. OBJECTIVES: The purpose of this review is to systematically identify and evaluate the structure and results of the current research about sexual satisfaction in heterosexual women in a long-term relationship. METHODS: A systematic literature search using Web of Knowledge, ProQuest and PSYNDEX was conducted from January 2004 to October 2019. In total, 1,649 studies published in the last 15 years were extracted from the databases with a systematic keyword search. Through a multistage evaluation process 204 studies met the inclusion criteria and described findings about sexual satisfaction as dependent variable. RESULTS: Research interest in sexual satisfaction increased notably in the last 5 years. Empirical analyses were predominantly based on data from North America whereas a considerably smaller share of research analyzed samples from Europe or Asia. Relationship variables were the most frequently analyzed predictors and included in more than half of the identified studies. Sexual behavior was most often analyzed in the form of frequency of sexual interactions. Contrariwise, sexual practices, communication about sexuality and sexual desire, and sexual thoughts received limited attention. Demographics were considered in one third of all studies. The inclusion of control variables was rare. Some important studies considered variables closely related to sexual satisfaction such as sexual dysfunction. CONCLUSION: Relationship satisfaction and the frequency of sexual interactions are identified as the most frequently confirmed predictors of sexual satisfaction across all evaluated studies. Results about the effects of pornography consumption, religion, and relationship duration showed the greatest inconsistency. In general, identified effects were often believed to result from mediator variables like sexual desire or distracting thoughts. Rausch D, Rettenberger M. Predictors of Sexual Satisfaction in Women: A Systematic Review. Sex Med Rev 2021;9:365-380.

Test-Retest Reliability and Temporal Agreement of Direct and Indirect Sexual Interest Measures.

The Explicit and Implicit Sexual Interest Profile (EISIP) is a multimethod measure of sexual interest in children and adults. It combines indirect latency-based measures such as the Implicit Association Test (IAT), Viewing Time (VT), and explicit self-report measures. This study examined test-retest reliability and absolute temporal agreement of the EISIP over a 2-week interval in persons who were convicted of sexual offenses against children (n = 33) and nonoffending controls (n = 48). Test-retest reliability of the aggregated EISIP measures was high across the whole sample (rtt = .90, intraclass correlation coefficient [ICC] = .90) with the IAT yielding the lowest retest correlations (rtt = .66, ICC = .66). However, these indicators of relative reliability only quantify the temporal stability of individual differences within the group, not the detectability of individual change. Absolute temporal agreement as assessed via Bland-Altman plots ranged from one fourth to three thirds of a standardized unit in the sexual preference scores. This implies that individual change has to exceed medium to large standardized effect sizes to be distinguishable from spontaneous temporal variation in the EISIP measures. Overall, scores of combined measures were largely superior to single measures in terms of both absolute and relative reliability.

Cross-Validation of the Revised Version of the Violence Risk Appraisal Guide (VRAG-R) in a Sample of Individuals Convicted of Sexual Offenses.

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.

Testosterone-Lowering Medication and Its Association With Recidivism Risk in Individuals Convicted of Sexual Offenses.

For a particular subgroup of individuals with severe paraphilic disorders and a high risk of sexual recidivism, the combination of sex drive-reducing medications and psychotherapy is a promising treatment approach. The present quasi-experimental study aims at comparing differences in clinical characteristics and dynamic risk factors between persons receiving (+TLM, n = 38) versus not receiving (-TLM, n = 22) testosterone-lowering medications (TLMs). Individuals receiving TLM were more frequently diagnosed with paraphilic disorders. Neither the criminal history nor average risk scores differed between the two groups. In the +TLM, Stable-2007 scores showed a stronger decrease after TLM treatment was started. This accounted especially for the general and sexual self-regulation subscales. Individual variations in risk, however, were not predicted by TLM but were significantly related to treatment duration and Psychopathy Checklist-Revised (PCL-R) Factor I. Paraphilic patients with problems in self-regulatory abilities seem to profit most from pharmacological sex drive-reducing treatment. Furthermore, therapists seem to underestimate deviant sexual fantasies in medicated patients.

Deviant sexual interests but not antisocial behaviors are associated with deficits in executive functioning in individuals convicted of sexual offenses against children.

Objective: Impaired neuropsychological functioning is one possible factor contributing to sexual offending against children. Previous research showed that neuropsychological and especially executive functioning deficits could be related to the two most important risk factors for sexual (re-)offending, namely an antisocial lifestyle and deviant sexual interests. Method: By using a quasi-experimental research design, the present study compared the performance of a sample of men convicted of child sexual abuse (CSA) offenses (n = 70) with men convicted of sexual offenses against adults (n = 49), men convicted of nonsexual offenses (n = 54), and nonoffending men (n = 70) in a set of neuropsychological tests assessing different aspects of executive functioning. Results: All three offending groups had a higher prevalence of brain injury and performed worse compared to nonoffending men on almost all neuropsychological tests. Individuals convicted of CSA offenses showed no differences compared to the other two offending groups. Latent class analyses revealed that a small subset of CSA-offending participants showed most pronounced neuropsychological deficits. These persons also exhibited more intense pedosexual interests but not more indicators of antisociality. Conclusions: The results of the present study indicate that only a certain subset of CSA-offending individuals demonstrates considerable neuropsychological deficits, which seem to correlate with a particularly strong sexual interest in children. This subgroup could also be described as having a particularly high risk concerning sexual reoffending with a sexual abuse offense. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Sexual attraction modulates interpersonal distance and approach-avoidance movements towards virtual agents in males.

How does sexual attraction alter social interaction behavior? We examined the influence of sexual orientation on locomotor approach-avoidance behavior and interpersonal distance. We immersed androphilic and gynophilic male subjects into a virtual environment and presented various male and female virtual persons. In the first experiment, subjects took a step forward (approach) or backward (avoidance) in response to the sex of the virtual person. We measured reaction time, peak velocity, and step size, and obtained ratings of sexual attractiveness in every trial. In the second experiment, subjects had to approach the virtual person as if they were to engage in a social interaction. Here, we analyzed interpersonal distance and peak velocity of the approaches. Our results suggest that sexual attraction facilitates the approach response and reduces the preferred interpersonal distance. We discuss our findings in terms of proxemics, current findings in sex research, and the applicability of our novel task in other fields of psychological research.

Dynamic Risk Assessment of Sexual Offenders: Validity and Dimensional Structure of the Stable-2007.

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.

@myTabu-A Placebo Controlled Randomized Trial of a Guided Web-Based Intervention for Individuals Who Sexually Abused Children and Individuals Who Consumed Child Sexual Exploitation Material: A Clinical Study Protocol.

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.

A Validation Study of the German Version of the Sexual Inhibition/Sexual Excitation Scales-Short Form.

The dual control model of human sexual behavior proposes that sexual responses involve an interaction between sexual excitatory and sexual inhibitory systems. The Sexual Inhibition/Sexual Excitation Scales (SIS/SES; Janssen, Vorst, Finn, & Bancroft, 2002) as well as its short form (SIS/SES-SF; Carpenter, Janssen, Graham, Vorst, & Wicherts, 2011) assess individual propensities to become sexually excited and sexually inhibited. The present study utilized a dataset of 2221 German-speaking adults (n = 1214 women and n = 987 men) to examine the psychometric properties of the German version of the SIS/SES-SF. The results of the confirmatory factor analysis indicated that the three factors suggested in the original version can be generally replicated within the current study. Analyses of measurement invariance for gender revealed that the general three-factor structure as well as factor loadings can be regarded as equal for men and women. However, scalar invariance could not be fully obtained, indicating that the intercepts of some items were different for men and women. Taken together, the results of the presents study provide further evidence for the psychometric properties of the German version of the SIS/SES-SF.

Determinants of Dropout From Correctional Offender Treatment.

Research indicates that approximately one third of offenders admitted to social-therapeutic correctional facilities in Germany fail to complete treatment and that treatment dropout is linked to higher recidivism in both sexual and violent offenders. The purpose of this study was to examine determinants of treatment dropout in a social-therapeutic correctional facility in Germany. The sample consisted of 205 incarcerated adult male offenders (49.8% sexual, 38.1% non-sexual violent) admitted to correctional treatment. Completers and dropouts were compared on variables pertaining to demographics, offense type, substance abuse, psychopathy, risk, and protective factors. Univariate analyses showed that treatment dropouts demonstrated significantly higher scores on measures of risk and psychopathy and lower scores on protective factors. Logistic regression analyses identified unemployment, non-sexual violent index offense, higher risk scores (HCR-20), and Facet 1 (interpersonal deficits) of the Psychopathy Checklist-Revised (PCL-R) as significant predictors of treatment dropout. Surprisingly, substance abuse disorder was a negative predictor of dropout. With the exception of substance abuse, the results support the notion that treatment dropouts represent a group of high-risk offenders with particular treatment needs. Practical implications and suggestions for further research are discussed.