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Barclay, Craig R.; Newell, Karl M. – Journal of Experimental Child Psychology, 1980
Results confirmed that children differentially use knowledge of results and suggested that any description of motor skill acquisition must account for the complex interaction between developmental level and the difficulty of the task at hand. (Author/DB)
Descriptors: Adolescents, Adults, Age Differences, Children
Randall, Tom M. – 1977
The purpose of this study was to attempt to train the horizontality concept in a group of first graders who were non-operational on the horizontality concept but transitional on what Piaget has termed the precursor concepts of distance and length conservation. There were two groups of subjects (training and control), all of whom had failed a…
Descriptors: Cognitive Development, Concept Formation, Elementary Education, Elementary School Students