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Andersson, Ulf; Lyxell, Bjorn – Journal of Experimental Child Psychology, 2007
This study examined whether children with mathematical difficulties (MDs) or comorbid mathematical and reading difficulties have a working memory deficit and whether the hypothesized working memory deficit includes the whole working memory system or only specific components. In the study, 31 10-year-olds with MDs and 37 10-year-olds with both…
Descriptors: Memory, Multidimensional Scaling, Reading Difficulties, Mathematics Skills
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Cramer, Phebe – Journal of Experimental Child Psychology, 1976
The false recognition procedure was used to determine the relative dominance of visual and verbal memory organization at two grade levels. The results indicated that visual encoding was predominant for first graders, but that both visual and verbal encoding occurred with fourth graders. (MS)
Descriptors: Age Differences, Cognitive Development, Developmental Stages, Elementary Education
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Dukette, Dianne; Stiles, Joan – Journal of Experimental Child Psychology, 1996
Examines the development of young children's analysis of spatial patterns--specifically, hierarchical letter and geometric forms. Suggests that although children as young as four years of age demonstrated substantial analytic competence, their ability to integrate the parts of the spatial array to form a coherent whole was weaker and more easily…
Descriptors: Age Differences, Cognitive Ability, Cognitive Development, Developmental Stages