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Wong, Terry T.-Y.; Ho, Connie S.-H.; Tang, Joey – Journal of Learning Disabilities, 2017
Developmental dyscalculia (DD) is a specific learning disability in mathematics that affects around 6% of the population. Currently, the core deficit of DD remains unknown. While the number sense deficit hypothesis suggests that the core deficit of DD lies in the inability to represent nonsymbolic numerosity, the access deficit hypothesis suggests…
Descriptors: Learning Disabilities, Mathematics Skills, Numeracy, Low Achievement
Swanson, H. Lee; Orosco, Michael J.; Kudo, Milagros – Journal of Learning Disabilities, 2017
This cohort-sequential study explored the components of working memory (WM) that underlie second language (L2) reading growth in 450 children at risk and not at risk for reading disabilities (RD) whose first language is Spanish. English language learners designated as balanced and nonbalanced bilinguals with and without risk for RD in Grades 1, 2,…
Descriptors: Short Term Memory, Bilingualism, Reading Difficulties, Spanish Speaking
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Swanson, H. Lee; Kudo, Milagros; Guzman-Orth, Danielle – Journal of Educational Psychology, 2016
This study investigated the prevalence and stability of latent classes at risk for reading disabilities (RD) in elementary-aged children whose first language is Spanish. To this end, children (N = 489) in Grades 1, 2, and 3 at Wave 1 were administered a battery of reading, vocabulary, and cognitive measures (short-term memory [STM], working memory…
Descriptors: English Language Learners, At Risk Students, Reading Difficulties, Learning Disabilities