Using an adapted multi-dimensional etiological model examines some of the factors which are said to contribute to the development of conduct disorder in adolescence. Three hypotheses which postulates specific relationships among the incidence of conduct disorder and three major factors (family, peer group and biological factors), were used to test the credibility of the model. The model was tested with black male adolescents in Kingston, Jamaica. Findings indicate that two of the three hypotheses are supported, i.e. there seemed to be some association between family factors and the presence of conduct disorder, little association with severity of conduct disorder; however there seemed to be significant association between peer group factors, specifically with peer group relations and the severity of conduct disorder; but there there appeared to be no association between biological factors and the presence or severity of conduct disorder. It therefore appears that the several factors thought to contribute to delinquency do not seem to operate with the same force in terms of the presence and severity of conduct disorder. Concludes that it may be possible to isolate one or more sets of factors which seem to be more influential in the development of juvenile delinquency; suggests that social policy makers look in some depth at specific family factors identified from study (absence of mother, low contact with mother, number of changes in living arrangements, and the presence of a negative parental role) which are associated with this disorder in order to develop preventive social policy initiatives.