The alleged assault was intrafamilial in 13 cases, lasting from several months to 10 years. Extrafamilial abuses were isolated events. Intercourse was alleged in 18 of the 20 instances. OSIQ group mean scores were in the poorly adjusted range for three scales, indicating serious problems with sexual attitudes, family relations, and feelings of inability to master the external environment. While the mean overall adjustment scale score was within normal limits, 10 girls had scores in the range indicating severe problems in adjustment; 7 were incest victims. Compared to nonsexually abused adolescent patients from a general adolescent clinic, sexually abused youth had significantly more problems with vocational/educational goals, psychopathology, and ability to master the environment. The self-concept problems identified in these sexually abused youth (1) are similar to those reported by women seeking psychiatric care long after their childhood sexual abuse occurred and (2) share some features reported among physically abused adolescents. (Author abstract)