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Odom, Richard D.; Mumbauer, Corinne C. – Developmental Psychology, 1971
Descriptors: Age Differences, Cognitive Processes, Color, Concept Formation

Keating, Daniel P.; And Others – Child Development, 1980
Examines the role of basic cognitive-processing efficiency as the source of developmental variance in cognitive performance. Two experimental tasks, memory and visual scanning, were used to investigate age effects on the search-processing parameter. Subjects were 9-, 11-, 13-, and 15-year-old children. (CM)
Descriptors: Adolescents, Age Differences, Children, Cognitive Ability

Willatts, Peter – Developmental Psychology, 1999
Three longitudinal studies examined means-ends behavior of 6- to 8-month olds. Found that intentional means-end behavior increased between 6 and 7 months, with 7-month olds' performance influenced by the presence of a toy on the cloth. Performance was the same when cloth was attached to or separate from the toy. By 8 months, infants adjusted…
Descriptors: Age Differences, Cognitive Development, Concept Formation, Developmental Tasks

Slone, Michelle; And Others – Journal of Cross-Cultural Psychology, 1996
A total of 270 children from 3 ethnic groups were tested for understanding of concepts of heating and cooling. A strong horizontal decalage effect was seen, with children of all ethnic groups using more sophisticated explanations at earlier ages for heating than cooling. Implications for developmental theory are discussed. (SLD)
Descriptors: Age Differences, Child Development, Children, Cognitive Development

Turnure, Cynthia – Developmental Psychology, 1975
Investigated the general relationship between children's performance on social and physical measures of cognitive functioning, possible sex differences in performance on the two types of tasks, and the relationship between boys' and girls' performances on these tasks and age and IQ. (SDH)
Descriptors: Age Differences, Cognitive Development, Concept Formation, Developmental Tasks
Webb, Roger A.; Daurio, Stephen P. – 1975
This study examined the transition from concrete to formal operations in very bright children in an effort to determine whether high ability in concrete operations would carry over into formal operational ability, and also to investigate precocity in regard to formal operations. Subjects were 38 white middle-class children ranging in age from…
Descriptors: Abstract Reasoning, Adolescents, Age Differences, Children
Scott, Marcia S. – 1972
The research experiments on relational learning in young children contained in this report were guided by two major goals: (1) to examine the extent of conceptual transfer in preschool children, and (2) to explore the relation of both "acquisition" and "transfer" to chronological development. The performance of preschool…
Descriptors: Age Differences, Cognitive Development, Cognitive Processes, Concept Formation

Siegler, Robert S. – Monographs of the Society for Research in Child Development, 1981
Describes and discusses the rule-assessment approach, a new research strategy for studying developmental sequences in children's acquisition of knowledge. Four experiments were conducted to illustrate the utility of this approach across a variety of concepts and a wide range of ages (three-year-olds to college students). (Author/CM)
Descriptors: Adolescents, Age Differences, Children, Cognitive Development
Nunez-Niebuhr, Virginia A.; Jones-Molfese, Victoria – 1976
Piaget, in describing the sequence of classificatory development, describes class inclusion as composed of two processes; hierarchical classification and post-whole comparisons. In the experiment reported here, elementary school children, trained in the concept of sets in first grade mathematics were given a task where they were required to assess…
Descriptors: Age Differences, Child Development, Classification, Cluster Grouping
McKeough, Anne M. – 1987
An analysis of children's narrative composition and art revealed concurrent development at both a general structural level and at a fine-grained detail level. A three-part study investigated whether this general cognitive pattern would be maintained across a different range of tasks: literary composition, scientific reasoning, and working memory.…
Descriptors: Age Differences, Child Development, Cognitive Development, Cognitive Processes
Klausmeier, Herbert J.; And Others – 1976
The Conceptual Learning and Development (CLD) Model specifies four levels of concept attainment (concrete, identity, classificatory, and formal) and three uses of concepts (problem solving, subordinate-supraordinate, and principles). Longitudinal and cross-sectional studies of concept attainment may be conducted. The results of this study of 300…
Descriptors: Abstract Reasoning, Age Differences, Cognitive Development, Cognitive Measurement