Purpose: This study examined language productivity and syntactic complexity in school-age children in relation to their knowledge of the topic of discussion--the game of chess. Method: Children (N = 32; mean age = 10;11 [years;months]) who played chess volunteered to be interviewed by an adult examiner who had little or no experience playing…

Investigated the development and fragmentation of categories over chronological and mental age without the requisite of free recall. Kindergarten, fourth grade, ninth grade and retarded students labeled and categorized chromatic slides of picturable objects. (GO)

The hierarchical structure of the formal operational period of Piaget's theory of cognitive development was explored through the application of ordering theoretical methods to a set of data that systematically utilized the various formal operational schemes. Results suggested a common structure underlying task performance. (Author/BH)

A conservation problem of numerical equivalence which 80% of adults reliably fail and 40% of third graders pass was developed, and responses of 188 subjects (Grades 2, 3, 5, 7, 9, 11 and college) to it and related number conservation and probability problems indicated that the differences in nonconservation were rooted in subjects' different…

Analyzes the performance of the Electronic Task (ET), to test for combinatorial reasoning, over a broad range of subject ages and abilities in order to evaluate it as a substitute for the original Chemical Task (CT). (GA)

This paper contends that efforts at educational reform must focus, above all, on the instructional encounter between teachers and students. The argument is presented in triadic sequence: three basic assumptions about learning, three interrelated models of the instructional process, and three practical approaches to promoting cognitive achievement.…

This paper presents a study of the interactive effects of developmental factors, types of tasks, and types of models on imitation. Subjects for the study were 16 boys and 16 girls at each of the ages of 7, 10, and 14 years. Each child was administered two types of imitation tasks: an objective task on which children judged the age of unfamiliar…

The inservice training package for teachers of severely and profoundly handicapped children consists of six field tested modules. Each module consists of the following components: objectives (general and specific), instructional methodology, instructor materials (lecture notes and transparencies), participant materials (worksheets and handouts),…