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Spencer, Mercedes; Wagner, Richard K.; Schatschneider, Christopher; Quinn, Jamie M.; Lopez, Danielle; Petscher, Yaacov – Learning Disability Quarterly, 2014
The present study seeks to evaluate a hybrid model of identification that incorporates response to instruction and intervention (RTI) as one of the key symptoms of reading disability. The 1-year stability of alternative operational definitions of reading disability was examined in a large-scale sample of students who were followed longitudinally…
Descriptors: Reading Difficulties, Response to Intervention, Models, Longitudinal Studies
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Waesche, Jessica S. Brown; Schatschneider, Christopher; Maner, Jon K.; Ahmed, Yusra; Wagner, Richard K. – Journal of Learning Disabilities, 2011
Rates of agreement among alternative definitions of reading disability and their 1- and 2-year stabilities were examined using a new measure of agreement, the affected-status agreement statistic. Participants were 288,114 first through third grade students. Reading measures were "Dynamic Indicators of Basic Early Literacy Skills" Oral…
Descriptors: Reading Fluency, Definitions, Economically Disadvantaged, Low Achievement
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Kim, Young-Suk; Petscher, Yaacov; Schatschneider, Christopher; Foorman, Barbara – Journal of Educational Psychology, 2010
In this study, we examined the relationship of growth trajectories of oral reading fluency, vocabulary, phonological awareness, letter-naming fluency, and nonsense word reading fluency from 1st grade to 3rd grade with reading comprehension in 1st, 2nd, and 3rd grades. Data from 12,536 children who were followed from kindergarten to 3rd grade…
Descriptors: Reading Comprehension, Reading Fluency, Academic Achievement, Phonological Awareness