Measurement Invariance of the Youth Self-Report Across Youth Who Have Committed Sexual and Nonsexual Offenses

Justice-involved youth experience high rates of mental health problems that require proper screening and assessment in order to effectively intervene. The Youth Self-Report (YSR) is a general psychopathology rating scale that measures several dimensions of psychopathology and is commonly used in clinical assessments, including with justice-involved youth. Yet, the underlying factor structure of the YSR has not been examined specifically in a sample of justice-involved youth. We examined the factor structure of the YSR using confirmatory factor analysis with a sample of 961 male youth involved with the justice system (12-18 years of age). Measurement invariance of the YSR was also examined across groups of youth who committed a sexual offence and those who committed a nonsexual offence. The eight-factor model presented with optimal fit to the data, consistent with previous research with nonjustice involved samples, and the model demonstrated strong measurement invariance across youth who committed both types of offenses (sexual and nonsexual). Youth who committed nonsexual offenses reported significantly higher degrees of rule-breaking behavior and lower degrees of social problems than youth who committed sexual offenses. The current findings provide strong psychometric evidence that supports the use of the YSR with justice-involved male youth. As such, clinicians and researchers can be confident in using the YSR as a mental health screening tool with male youth involved with the justice system who have committed various offenses. Public Significance Statement Justice-involved youth experience some of the highest rates of mental health issues among youth, which require evidence-based assessments to ensure their needs are adequately met. The Youth Self-Report is a popular tool for general population youth and is now shown to be equivalently psychometrically robust among justice-involved youth.