The prevalence and incremental validity of identity problem symptoms in a high school sample.

This paper examines the expression, prevalence, and incremental validity of identity problem symptoms in adolescence. A sample of high school students (N = 140) aged 15-18 completed measures of identity problem symptoms, identity status, and psychological symptom severity. Findings suggested that 14.3% would meet DSM IV criteria for identity problem. Identity problem symptoms predicted psychological symptom scores beyond identity status, and identity status accounted for substantially less variance in psychological symptom severity when controlling for identity problem symptoms. Additional research on the relationship between identity problems and psychological adjustment is needed and greater attention to the role of identity issues in clinical practice is warranted.