Journal of Pediatric Psychology 7(1) pp. 61-73, 1982
© 1982 Society of Pediatric Psychology
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Patterns of Behavioral Disturbance in Developmental Disabled Children: A Replicated Cluster Analysis1
Duke University Medical Center
2All correspondence should be directed to John F. Curry, P. O. Box 2906, Duke University Medical Center, Durham, North Carolina 27710.
Missouri Childrens Behavior Checklist ratings were obtained on two samples of children referred to a developmental disabilities clinic. One sample consisted of 131 children (89 males, 42 females), the other of 126 children (85 males, 41 females). The samples were equated on average age, socioeconomic status, and proportion of males to females. Hierarchal cluster analysis was performed on the checklist scale scores of the children in each sample, yielding four replicated behavior clusters. Analysis of mean scale scores of each cluster indicated the presence of three behavior problem subgroups (Aggressive-Active, Inhibited, and Mixed), and one Normal subgroup. Rules derived from the replicated clusters were applied to both samples from the developmental disabilities clinic, and to samples of non-referred and psychiatrically referred children. In each developmentally disabled sample, the largest proportion of children were in the Normal subgroup. The distribution of cluster membership frequencies differed significantly between nonreferred and developmentally disabled children, and between the latter and psychiatrically referred children. Results are discussed in relation to previous findings of mean problem scale elevations in these populations, in relation to broad band patterns of behavior disorders, and in terms of the utility of replicated cluster patterns for future classification.
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