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Geary, David C.; Hoard, Mary K.; Byrd-Craven, Jennifer; DeSoto, M. Catherine – Journal of Experimental Child Psychology, 2004
Groups of first-grade (mean age = 82 months), third-grade (mean age = 107 months), and fifth-grade (mean age = 131 months) children with a learning disability in mathematics (MD, n=58) and their normally achieving peers (n = 91) were administered tasks that assessed their knowledge of counting principles, working memory, and the strategies used to…
Descriptors: Grade 1, Grade 5, Learning Disabilities, Memory

Fletcher, Claire M.; Prior, Margot R. – Journal of Experimental Child Psychology, 1990
In contrast with younger children of the same reading age, reading-disabled (RD) children performed poorly when they were required to independently abstract grapheme-phoneme (g-p) rules and use them to pronounce pseudowords. Results suggest a phonologically based productive deficit which interferes with the learning of g-p rules. (RH)
Descriptors: Cognitive Ability, Cognitive Processes, Comparative Analysis, Error Patterns