Studied social interactions of intellectually normal Head Start children, children with low rates of social interaction, children diagnosed as socially-emotionally handicapped, and socially normal, nonhandicapped children. All groups differed on peer interactions, positive social initiations, and reciprocity rule. (Author/BB)

Studies the frequency with which preschool children used 11 play centers, engaged in social and nonsocial activities in each play center, and interacted positively and negatively with each other. (HOD)