| Sumario: | A somewhat revised four-factor structure emerged for the HK/MBD questionnaire with a sample of nonclinical adolescents. The three factors of hyperactivity/impulsivity, antisocial/oppositional behaviors, and learning problems largely retained their factor integrity, but a distinct peer dysfunction factor replaced attentional/socialization problems with the adolescent sample. Acceptable levels of internal consistency were found for three of the factors (excluding learning problems), and interrater reliability between adolescents and their primary caregivers was significant for all four factors. High factor intercorrelations were reported for hyperactivity/impulsivity and antisocial/oppositional behaviors. Differential predictive relations were found between the four factors and adolescent problem behaviors. Specifically, hyperactivity/impulsivity and antisocial/oppositional behaviors were most highly correlated with externalizing symptoms such as alcohol problems, delinquency, illicit drug use, and poor school performance. Peer dysfunction was most highly correlated with internalizing, depressive symptoms. Learning problems correlated most highly with poor school performance, and moderately with alcohol problems and depressive symptoms. There were no statistically significant differences in the strength of the interrelations between the factors of the HK/MBD questionnaire and adolescent problem behaviors for males and females.
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