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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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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