The present study was designed to assess the effectiveness of certain cognitive training tasks on children in group settings under natural preschool conditions. Thirty-five children, aged 47-63 months, were divided into six experimental groups and received various cognitive tasks. Results indicated that most children experienced at least moderate…

Two experiments tested the assertion that development of quantitative knowledge follows a U-shaped course with an early stage of conservation based on functional significance. Tested three age groups of children from three to six years. Results suggest the assertion is unwarranted and reveal that performance in younger children is best interpreted…

This study investigated the effect of different implicit definitions of equality upon children's performance on conservation tasks. In the study, traditional versions of conservation tasks are compared to modified versions in which initial equality is established through verbal counting of discontinuous quantities and measuring of continuous…

The purpose of this study was to test training techniques designed (1) to induce conservation of discontinuous quantity in children, and (2) to induce ability to take different social roles. Also tested was this hypothesis: successfully training children in conservation will improve their ability to take different social roles, and conversely,…

Assessing Markman's hypothesis that the organizational principles underlying collection concepts facilitate children's performance on cognitive tasks requiring part-whole comparisons, three experiments indicated that the facilitative effect of collection labels appears to be specific to the class-inclusion task. Results suggest that Markman's…

This study investigated the ability of preschool children in Singapore to conserve number, length, and quantity. Participants were more than 200 children of 3 to 6 years who attended one of six different types of preschool centers. Findings indicated that more than half of the 5.5-year-old children were able to conserve number, but less than 15…

Two studies explored the possibility of inducing conservation understanding in intellectually normal preschoolers and mildly mentally retarded children of comparable mental age. Retarded children, MA 3-10 to 5-0, received Verbal Rule instruction. Three- and 4-year-old children were given Verbal Rule training in a 2 x 2 x 2 factorial design…

The four purposes of this study were (1) to test the long-range effects of classification training (CT) on disadvantaged black children, (2) to evaluate the effects of reintroducing CT to those previously trained, (3) to compare CT at two age periods (5 and 6 years old), and (4) to compare CT with attention training (AT). Of the 69 children used…

While the purpose of this project was curriculum development, long range benefits are contingent upon a radical reorganization and upgrading of public school systems throughout Appalachia. Subjects in the pilot assessment consisted of 80 children (3 1/2 to 6 1/2 years old) and their mothers from each of Monongalia and Upshur Counties, West…

In four parts, this discussion describes characteristics of the thought of infants, preschool children, primary school students, and adolescents. Topics briefly addressed in part I, on the thought processes/capabilities of babies, concern sensorimotor thought without abstraction, the importance of physical exploration, the development of…