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Peer reviewedPower, Thomas G.; And Others – Developmental Psychology, 1985
Studies 12- to 24-month-olds in a series of videotaped tasks assessing single object manipulation, relational play, pretend play, distractibility and persistence. Develops eight relatively subtle measures of three aspects of individual differences in infant behavior: developmental level, attention span, and exploratory diversity. (Author/NH)
Descriptors: Exploratory Behavior, Individual Differences, Infants, Object Manipulation
Ruskin, Ellen M.; And Others – American Journal on Mental Retardation, 1994
Comparison of 40 children with Down's syndrome and typically developing children (matched for mental age) found that the children with Down's syndrome appeared less engaged in a task, as indicated by shorter sequences of goal directed behavior and higher rates of toy rejection. They also displayed less causality pleasure with object exploration…
Descriptors: Children, Downs Syndrome, Goal Orientation, Interests
