The Adolescent Clinical Sexual Behavior Inventory (ACSBI) scales reflected three of the five scales with similar items: Concerns about Appearance, Sexual Knowledge, and Sexual Deviance. The two factors that did not emerge included Sexual Risk-Taking and Fear/Discomfort. In yielding three similar factors, the measure reliably assessed the adolescents' sexual knowledge, risky sexual behaviors, and concerns related to appearance. The results suggest that the ACSBI-Self-Report may prove useful in identifying some heterogeneous concerns related to sexual interest or knowledge, appearance, and sexually risky behaviors among adolescents. The ACSBI was developed to comprehensively assess sexual behaviors and attitudes among high-risk adolescents between the ages of 12-18. Parent- and self-report versions of the measure were developed, and reliability and validity were established. The measure was designed to identify target areas for intervention among high-risk samples, such as clinic-referred adolescents and those who have been sexually abused. This study sought to assess the underlying factor structure of the ACSBI when used with a clinical population presenting for mental health evaluation and treatment, to compare the psychometrics of the ACSBI-S in terms of factor structure, internal consistency, and convergent validity, and to replicate Friedrich's 2004 multiple regression analyses to examine predictors of sexual behavior. Participants of the study consisted of 141 teenagers, age 12-19 and their primary caregivers. Tables and references