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Denney, Nancy Wadsworth; Lennon, Madonna L. – Developmental Psychology, 1972
Whereas middle-aged individuals tended to group the entire stimulus array into piles of similar items, the elderly individuals grouped very much as young children do--arranging only a portion of the stimulus array into elaborate designs. (Authors)
Descriptors: Age Differences, Classification, Cluster Grouping, Comparative Analysis
Peer reviewed Peer reviewed
Matheny, Adam P.; And Others – Developmental Psychology, 1974
Reports an analyses of ratings on Bayley's Infant Behavior Record and test scores from the Bayley Mental Scale for 60 female and 50 male infants at 6, 12, 18 and 24 months of age. Results are discussed in terms of rank-order correlations, behavioral composite scores and study implications. (Author/SDH)
Descriptors: Behavior Rating Scales, Cluster Grouping, Cognitive Ability, Comparative Analysis