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Nigl, Alfred; Fishbein, Harold – Developmental Psychology, 1974
Empirically describes the relative development of perceptual and conceptual understanding of left-right, back-front, up-down projective relationships between objects and provides a heuristic model of the cognitive processes involved in coordination of perspectives tasks. (Author/ED)
Descriptors: Child Development, Children, Cognitive Development, Cognitive Processes
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Odom, Richard D.; Mumbauer, Corinne C. – Developmental Psychology, 1971
Descriptors: Age Differences, Cognitive Processes, Color, Concept Formation
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MacKay, C. K.; And Others – Developmental Psychology, 1972
One finding is that the children in this study did not reach a level in the development of these concepts expected by Piaget of 9-year-olds. (Authors/CB)
Descriptors: Concept Formation, Conservation (Concept), Developmental Tasks, Difficulty Level
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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
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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
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Siegler, Robert S.; Richards, D. Dean – Developmental Psychology, 1979
The rule assessment approach was used to examine five-, eight-, eleven-, and twenty-year-olds' concepts of time, speed, and distance. (CM)
Descriptors: College Students, Comprehension, Concept Formation, Decision Making