A study of the use of multiple form dimensions in pattern classification by children in Grades 2 and 5, and adults. Reliability of classification, number and saliency of features selected, and accuracy with which they were used all implied continuous development of perceptual skills. (Author/ED)

Children 6 and 11 years of age were given a recall task in which the perceptual salience of the information and the type of conceptual evaluation required for solution (analysis or synthesis) were varied. (Author/JMB)

Cardinal-ordinal abilities and attentional preferences of kindergarten nonconservers, kindergarten conservers, and third grade conservers of number were compared by employing standarized versions of Piagetian cardinal-ordinal tasks and a triad preference task. (Author/JMB)

Experiment examined the generality of dimensional and cue-location biases in inference and role of directness of information. (Author)

Presents an investigation of the hypothesis that an increase in the salience of the total class dimension should improve class-inclusion performance. Subjects were 220 children in kindergarten through third grades. (SDH)

Subjects were trained against their initial dimensional preference in a two-dimensional simultaneous discrimination learning task. (RH)

Uni- and multidimensional processing of 6- to 9-year olds was studied using recall tasks in which an array of stimuli was reconstructed to match a model array. Results indicated that both age groups were able to solve multidimensional problems, but that solution rate was retarded by the unidimensional processing of highly salient dimensions.…

Results suggest that selective attention is a multifaceted skill, with development of its parts progressing at different rates. (Author)