A 20-item Piagetian-type sorting task was presented to 12 unilaterally brain-injured adult patients and 12 non-injured controls. The left hemisphere brain-injured subjects and the controls showed preferences for the features of shape and texture. In contrast, the right hemisphere brain-injured subjects preferred the feature of size. (Author)

The taxonomy outlined in this paper provides a framework for the classification of performance objectives. The taxonomy has three levels: (1) demonstration of cognitive mastery; (2) demonstration of a task in isolation; and (3) demonstration of a task in context. As one moves up the taxonomy, the student's performance requires a longer period of…

Presents the procedures, results, and conclusions of a study designed to determine if, among other things, an Inquiry program would have a continued effect on children's behavior after the novelty of the situation had passed. (LC)

Compares developmental changes in the processing of subordinate/superordinate relationships across perceptual and nonperceptual categories. Perceptual categories contained visually similar exemplars, while nonperceptual categories contained dissimilar exemplars. Second, fifth, and eleventh graders, as well as mentally retarded adolescents,…

Assesses the effectiveness of different child-generated classification schemes on preschool children's memory performance. Children who organized pictures according to taxonomic categories (e.g., animals, vehicles) demonstrated significantly greater recall than children classified as nontaxonomic. (Author/MP)

Evaluates the effects of an intensive period of dramatic play upon the cognitive structures of 12 three- to five-year-old children. (CM)

A Piagetian task of spatial functioning and a modified classification problem (simple intersection) were administered to children to test the degree of relationship between logical and sublogical operations by defining their common cognitive components. (Author/DB)

Four experiments investigated whether 9-month-olds could use the presence of labels to help them establish a representation of two distinct objects in a complex object individuation task. Found that the presence of two distinct labels facilitated object individuation, but presence of one label for both objects, two distinct tones, two distinct…

This study examined whether 9.5-month-olds could use featural information to individuate objects. Results suggest that infants categorize events involving opaque and transparent occluders as the same kind of situation and that infants are more likely to give evidence of individuation when they need to reason about one kind of event than when they…

Performance on oddity transfer tasks was used to classify 40 mildly retarded, 6- through 9-year-old and 40 normally achieving children of the same age into their 2 respective groups. High levels of classification accuracy were observed with all 8 oddity types being sensitive to differences between the normally achieving and mildly retarded…

Experiments with groups of 30 children (aged 3 through 6) and 32 children (aged 5 through 8) showed that (1) children use linguistic form-class information with familiar discrete objects, (2) children do not use linguistic form-class information with familiar food, and (3) children use only object category information with unfamiliar items.…

Considers assumptions underlying current cognitive science research on concepts: (1) novel information is first processed via similarity judgments and later by explanatory components; (2) children initially have a similarity-based component for learning concepts--the explanatory component develops on its foundation. Argues that these assumptions…