| representativeness of clinical samples of youths with mental disorders: a preliminary population-based study. | in a household community sample of 1,285, 9-17 years-olds with mental disorders who had received outpatient specialty mental health services in the past year were compared with youths with mental disorders who had not received those services to determine if samples drawn from clinical settings are representative of youths with mental disorders in the general population. those who had used services were more impaired, less competent, more likely to have comorbid disorders, more likely to belong t ... | 1997 | 9103713 |