Offender personality disorder pathway screening tools evaluation

Purpose The offender personality disorder (OPD) pathway faces the difficult task of identifying individuals who are eligible for their service from the entire probation caseload. The offender assessment system personality disorder (OASys PD) screen is a national screening tool used by the pathway to help with this task. This paper aims to describe an evaluation of the effectiveness of this plus an additional screening tool currently used to identify eligible individuals for the OPD service in the South of England. Recommendations for improvements were made as necessary. Design/methodology/approach A mixed methods design used a quantitative analysis of data on the effectiveness of the OASys PD for correctly identifying individuals and a thematic analysis of a focus-group conducted with clinicians within the service. Findings The analysis revealed a positive predictive value of the OASys PD screen of 72% and a negative predictive value of 91%. Key themes from the focus-group revealed what worked well about the screening process, what was difficult and what needed to be improved. Practical implications The OASys PD performed better than the clinicians had expected. It was recommended that the service continued to use the combination of the screening tool and the interviews with minor adjustments. Originality/value This is the first research study of its kind on the effectiveness of the OASys Personality Disorder Screening tool. Using such a tool with some caution (the addition of consultation) creates a useful and effective process for tackling the very difficult task of identifying people for the community component of the Offender Personality Disorder Service. This research provides some evidence for the validity of such a process that is currently used throughout the National Probation Service in England and Wales.

Further Validation of the Comprehensive Assessment of Psychopathic Personality-Self-Report (CAPP-SR) in Lithuanian Offender and Nonoffender Samples

The Comprehensive Assessment of Psychopathic Personality (CAPP) is an emerging integrative model that makes use of 33 symptoms to characterize psychopathic personality disorder, but operationalizations of this model have not endured extensive validation to date. The current study sought to validate the recently published CAPP-Self-Report (CAPP-SR). Participants derived from two Lithuanian offender ( n = 231) and nonoffender ( n = 312) samples. They were administered the CAPP-SR, Triarchic Psychopathy Measure, Buss–Perry Aggression Questionnaire, and a subsample of offenders also had Offender Assessment System risk assessment scores available. The results showed that CAPP-SR total, domain, and symptom scores were associated with TriPM and Aggression Questionnaire scores in a manner consistent with conceptual expectations. CAPP-SR symptoms specifically reflective of aggression, anger, and antagonism were most strongly associated with Offender Assessment System risk scores. The findings provide support for construct validity of CAPP-SR scores as well as have implications for the CAPP model more broadly, which are discussed.

Reliability and Predictive Validity of the Juvenile Sex Offender Assessment Protocol-II in an Australian Context

This study investigated the reliability and predictive validity of the Juvenile Sex Offender Assessment Protocol-II (J-SOAP-II), in an Australian context, and for Australian Indigenous and non-Indigenous youth. Participants were 123 ( n = 91 non-Indigenous; n = 32 Indigenous) youth assessed using the J-SOAP-II and followed up over an average period of 4 years. The reliability of the J-SOAP-II was assessed using measures of internal consistency (Cronbach’s alphas and inter-item correlations). Receiver operating characteristic (ROC) analyses were conducted to assess the J-SOAP-II’s validity in predicting sexual and non-sexual (violent and non-violent) recidivism. Overall, the J-SOAP-II demonstrated moderate to high levels of reliability and weak to moderate levels of validity for predicting sexual and non-sexual (violent and non-violent) recidivism for the whole sample. While the J-SOAP-II total score was significantly associated with non-sexual (violent and non-violent) recidivism for non-Indigenous youth, it was not significantly associated with any of the outcome variables for Indigenous youth. Across all analyses, the dynamic scales of the J-SOAP-II predicted recidivism with greater accuracy than the static scales. However, the static scales had greater accuracy in predicting the risk of sexual recidivism for Indigenous youth. While a reliable measure, these preliminary findings raise questions about the validity of the J-SOAP-II for predicting sexual recidivism for Indigenous and non-Indigenous youth in an Australian context, and warrant further investigation.

Are Juveniles Who Have Committed Sexual Offenses the Same Everywhere? Psychometric Properties of the Juvenile Sex Offender Assessment Protocol–II in a Portuguese Youth Sample

Over the last decade, we have witnessed consistent advances in risk assessment procedures, namely the validation of those used with juveniles who have committed sexual offenses. The adaptation of these instruments into other languages requires research examining the conceptual and metric equivalence of the instruments, not just translation equivalence. Informed by data from 141 boys, aged 13 to 18, the psychometric properties of the Portuguese version of the Juvenile Sex Offender Assessment Protocol–II (J-SOAP-II), regarding reliability and construct validation, are presented and discussed. Factor structure, internal consistency, and interrater reliability were examined, and a reliable factorial structure that was consistent with the original validation of the J-SOAP was found. Scales 2 and 3 had good internal consistency, and Scale 1 had acceptable internal consistency. Results regarding concurrent validity revealed mostly statistically significant correlations. The implications of this research for juvenile sex offender risk assessments are discussed.

Long-Term Predictive Validity of the Juvenile Sex Offender Assessment Protocol–II: Research and Practice Implications

The current study evaluated the predictive validity of the Juvenile Sex Offender Assessment Protocol–II (J-SOAP-II) scores in a sample of juveniles who recidivated sexually or nonsexually as adults. Participants included 166 juveniles who had previously sexually offended and were followed into adulthood for an average of 10.75 years. Results of area under the receiver operating characteristic curve (AUC) analyses supported the predictive validity of the J-SOAP-II Total Score, Scale 1, and Static Score in regard to adult sexual recidivism, and predictive validity was found for all J-SOAP-II scores (except Scale 1) in regard to adult nonsexual recidivism. Implications for future research on the assessment of risk factors and treatment needs for adolescents who commit sexual offenses are discussed.