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Zheng, Xinhua; Flynn, Lindsay J.; Swanson, H. Lee – Learning Disability Quarterly, 2013
This article provides a quantitative synthesis of the published literature on word problem solving intervention studies for children with math disabilities (MD). Seven group and eight single-subject design studies met inclusion criteria. Mean effect sizes ("ES"s) for solution accuracy for group design studies were 0.95 (SE = 0.19) for…
Descriptors: Intervention, Word Problems (Mathematics), Problem Solving, Learning Disabilities
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Flynn, Lindsay J.; Zheng, Xinhua; Swanson, H. Lee – Learning Disabilities Research & Practice, 2012
This article synthesizes the experimental literature on reading interventions for upper elementary and middle school students identified with reading disabilities on norm-referenced reading measures. Ten studies (12 independent samples) yielded 70 effect sizes on norm-referenced reading measures with an aggregated mean of 0.41 (SE = 0.04) in favor…
Descriptors: Reading Difficulties, Intervention, Effect Size, Reading Skills
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Zheng, Xinhua; Swanson, H. Lee; Marcoulides, George A. – Journal of Experimental Child Psychology, 2011
This study determined the working memory (WM) components (executive, phonological loop, and visual-spatial sketchpad) that best predicted mathematical word problem-solving accuracy of elementary school children in Grades 2, 3, and 4 (N = 310). A battery of tests was administered to assess problem-solving accuracy, problem-solving processes, WM,…
Descriptors: Elementary School Students, Structural Equation Models, Problem Solving, Short Term Memory
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Swanson, H. Lee; Moran, Amber S.; Bocian, Kathleen; Lussier, Cathy; Zheng, Xinhua – Learning Disability Quarterly, 2013
This study investigated the role of generative strategies and working memory capacity on word problem solving accuracy in children with math difficulties (MD). Within classrooms, children in Grade 3 with MD ("n" = 69) were randomly assigned to one of three treatment conditions: paraphrase question propositions (Restate), paraphrase…
Descriptors: Word Problems (Mathematics), Learning Strategies, Comprehension, Short Term Memory
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Swanson, H. Lee; Jerman, Olga; Zheng, Xinhua – Journal of Psychoeducational Assessment, 2009
This article synthesizes some of the published literature that selectively compares the cognitive functioning of children with math disabilities (MDs) with average-achieving children and poor readers (children with reading disabilities [RDs] or comorbid disabilities [RDs + MDs]). All studies in the synthesis report reading, IQ, and math scores for…
Descriptors: Reading Difficulties, Learning Disabilities, Intelligence Quotient, Short Term Memory
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Swanson, H. Lee; Zheng, Xinhua; Jerman, Olga – Journal of Learning Disabilities, 2009
The purpose of the present study was to synthesize research that compares children with and without reading disabilities (RD) on measures of short-term memory (STM) and working memory (WM). Across a broad age, reading, and IQ range, 578 effect sizes (ESs) were computed, yielding a mean ES across studies of -0.89 (SD = 1.03). A total of 257 ESs…
Descriptors: Reading Difficulties, Short Term Memory, Ability Grouping, Effect Size
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Swanson, H. Lee; Jerman, Olga; Zheng, Xinhua – Journal of Educational Psychology, 2008
The influence of cognitive growth in working memory (WM) on mathematical problem solution accuracy was examined in elementary school children (N = 353) at risk and not at risk for serious math problem solving difficulties. A battery of tests was administered that assessed problem solving, achievement, and cognitive processing (WM, inhibition,…
Descriptors: Elementary School Students, Inhibition, Problem Solving, Short Term Memory