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Different components of working memory have different relationships with different mathematical skills
Authors:Simmons Fiona R  Willis Catherine  Adams Anne-Marie
Affiliation:School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool L3 3AF, UK. f.r.simmons@ljmu.ac.uk
Abstract:A comprehensive working memory battery and tests of mathematical skills were administered to 90 children-41 in Year 1 (5-6 years of age) and 49 in Year 3 (7-8 years of age). Working memory could explain statistically significant variance in number writing, magnitude judgment, and single-digit arithmetic, but the different components of working memory had different relationships with the different skills. Visual-spatial sketchpad (VSSP) functioning predicted unique variance in magnitude judgments and number writing. Central executive functioning explained unique variance in the addition accuracy of Year 1 children. The unique variance explained in Year 3 multiplication explained by phonological loop functioning just missed conventional levels of significance (p=.06). The results are consistent with the VSSP having a role in the development of number writing and magnitude judgments but a lesser role in early arithmetic.
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