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Phenotypic performance profile of children with reading disabilities: A regression-based test of the phonological-core variable-difference model.
In this study, we introduce a new analytic strategy for comparing the cognitive profiles of children developing reading skills at different rates: a regression-based logic that is analogous to theExpand
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IQ Is Irrelevant to the Definition of Learning Disabilities
  • L. Siegel
  • Psychology, Medicine
  • Journal of learning disabilities
  • 1 October 1989
The purpose of this article was to examine the logic and the empirical data supporting the proposition that intelligence tests are not necessary for the definition of a learning disability. FourExpand
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Converging Evidence for Phonological and Surface Subtypes of Reading Disability.
Using regression-based procedures introduced by A. Castles and M. Coltheart (1993), the authors identified 17 phonological and 15 surface dyslexics from a sample of 68 reading-disabled 3rd-gradeExpand
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The development of working memory in normally achieving and subtypes of learning disabled children.
Working memory has been proposed as an important component of reading and arithmetic skills. The development of working memory was studied in normally achieving and subtypes of learning disabledExpand
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Home Environment and Cognitive Development in the First 3 Years of Life: A Collaborative Study Involving Six Sites and Three Ethnic Groups in North America
Attempted to examine the generalizability of environment/development relationships among 3 ethnic groups across the first 3 years of life. Social status did not show a consistent relationship toExpand
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The development of reading in children who speak English as a second language.
Patterns of reading development were examined in native English-speaking (L1) children and children who spoke English as a second language (ESL). Participants were 978 (790 L1 speakers and 188 ESLExpand
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Orthographic and cognitive factors in the concurrent development of basic reading skills in two languages
There is some controversy in the research literature as towhether the development of reading skills in differentorthographies varies primarily as a function of common underlyingcognitive processesExpand
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Morphological Awareness Skills of English Language Learners and Children With Dyslexia
The purpose of this study was to examine the relation of morphological awareness to reading and spelling skills of children with dyslexia, children who are typical readers, and children who areExpand
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Issues in the Definition and Diagnosis of Learning Disabilities
  • L. Siegel
  • Psychology, Medicine
  • Journal of learning disabilities
  • 1 July 1999
This article reviews issues related to the definition of learning disabilities in the context of the Guckenberger v. Boston University case. Four major questions are addressed: (a) Who is learningExpand
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Working Memory and Reading: A Life-span Perspective
The relationships among working memory, memory span, and reading skills were studied in 1266 individuals, aged 6-49. They were administered tests of word recognition, pseudoword decoding, readingExpand
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