A four choice discrimination problem was used to examine imitative behavior in children matched in mental age but differing in chronological age. The finding that older children imitated less than younger children is discussed in terms of socialization. (DP)

Interpersonal problem-solving skills of 17 mildly retarded students and two groups of nonretarded subjects (Ns=30) matched on mental age (MA) and chronological age were assessed using hypothetical problem solving situations. Results indicated similarities between mentally retarded subjects and MA matched controls in types and number of strategies…

The study of affect comprehension in 15 children with pervasive developmental disorders (ages 7-10) and normal children matched for mental age found that the disabled children were impaired on affect matching compared to the controls and were impaired on face and affect matching relative to their own performance on object matching. (Author/DB)

Twenty normal and 20 retarded children were studied to determine the influences of mental (MA) and chronological age (CA) on the attribution of life characteristics to animate and inanimate objects. In both normal and retarded children, attribution depended on an interaction between M.A. and C.A. (DP)