Blanchette, Lauren Alicia. Reliability and validity of the registrant risk assessment scale as a method of sexual offender risk assessment. Retrieved from https://doi.org/doi:10.7282/t3-ycf1-r443
DescriptionThroughout the history of the United States, various laws have been in effect to manage convicted sexual offenders and the risk of recidivism, and risk assessment instruments have been developed and honed over the past several decades (Blacher, 1994; Hanson & Thornton, 1999). Some of these instruments, such as the Static-99R, have been widely used and validated across the globe. Others, such as New Jersey’s state risk assessment instrument, the RRAS, were developed relatively quickly in response to several factors, including a sudden increase in community and political pressure, and validity studies have been limited (Lanterman et al., 2014; Witt et al., 1996). This study sought to begin to address this gap in research by examining the RRAS’s reliability and validity, in part through assessment of concurrent validity with two widely used and validated measures, the Static-99 and Static-99R. A pre-existing data set of 61 case files, consisting of the RRAS and either the Static-99 or Static-99R, from adult male clients of Somerset Psychological Group were used in this study. Results showed internal consistency reliability below the recommended level for high-stakes decisions. A confirmatory factor analysis demonstrated nearly equivalent fit between three candidate models. We found significant concurrent validity between the RRAS and the Static-99R, but not the original Static-99. Although interpretation of these results must be tempered by the limited sample size, they raise important questions for the future of sexual offender assessment and how data from risk assessments are used for legal decision-making.