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Barnes, Marcia A.; Stuebing, Karla K.; Fletcher, Jack M.; Barth, Amy E.; Francis, David J. – Journal of Research on Educational Effectiveness, 2016
Difficulties suppressing previously encountered but currently irrelevant information from working memory characterize less skilled comprehenders in studies in which they are matched to skilled comprehenders on word decoding and nonverbal IQ. These "extreme" group designs are associated with several methodological issues. When sample size…
Descriptors: Reading Difficulties, Reading Comprehension, Secondary School Students, Short Term Memory
Kim, James S.; Guryan, Jonathan – Society for Research on Educational Effectiveness, 2011
There are several goals guiding this study. First, the authors use an experimental design to examine the causal effects of giving children 10 self-selected books over two summers. Second, they examine whether treatment effects are moderated by children's family income (i.e., eligibility for free- and reduced-price lunch). As a result, they examine…
Descriptors: Reading Comprehension, Research Design, Reading Materials, Family Income