The use of mental health-related intake assessments by juvenile correctional facilities as predictive measures of confinement behavior has seen limited use in recent years. This study employs the Massachusetts Youth Screening Instrument-Version 2 (MAYSI-2) and How I Think Questionnaire (HIT) as measurement tools on the same data set to assess the risk of misconduct during incarceration. Sixty-five male and female youth, confined at a secure, juvenile rehabilitation center, comprised the participant sample. Each was administered the MAYSI-2 and HIT upon admission followed by a mean confinement of approximately 168 days. Findings support prior research identifying the utility of MAYSI-2 angry-irritable and traumatic experience subscales as predictive of institutional misconduct. In addition, correlations existed between the MAYSI-2 traumatic experiences subscale, HIT composite score, and misconduct write-ups.