The "Screening Test for Emotional Problems-Self-Report" (STEP-S) was designed to assess students aged 10 to 17 years referred for wide-ranging emotional disturbances categorized under the Individuals with Disabilities Education Improvement Act. Preliminary analysis indicated that subscale coefficients alpha ranged from 0.76 to 0.85 and test-retest coefficients from 0.65 to 0.79. Confirmatory factor analysis indicated a marginal fit of the five-factor model to the data, whereas substantial support was provided for diagnostic, convergent, and discriminant score validity. (Contains 2 tables.)