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Defining Dyslexia as a Developmental Language Disorder.
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Catts, Hugh W. – Annals of Dyslexia, 1989
The paper discusses problems with traditional definitions of dyslexia and reviews research that suggests a more comprehensive definition, viewing dyslexia as a developmental language disorder that involves a deficit in phonological processing. The disorder is seen as manifesting itself in various phonological difficulties as well as in a specific…
Descriptors: Definitions, Developmental Tasks, Dyslexia, Elementary Secondary Education
Language Basis of Reading and Reading Disabilities: Evidence from a Longitudinal Investigation.
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Catts, Hugh W.; Fey, Marc E.; Zhang, Xuyang; Tomblin, J. Bruce – Scientific Studies of Reading, 1999
Investigates effects longitudinally of phonological processing and oral language abilities on children's reading and reading disabilities. Compares second grade good and poor readers on measures of oral language and phonological processing taken in kindergarten. Suggests that language-based theories of reading and reading disabilities must include…
Descriptors: Comparative Analysis, Grade 2, Language Processing, Language Research
Language Deficits in Poor Comprehenders: A Case for the Simple View of Reading
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Catts, Hugh W.; Adlof, Suzanne M.; Weismer, Susan Ellis – Journal of Speech, Language, and Hearing Research, 2006
Purpose: To examine concurrently and retrospectively the language abilities of children with specific reading comprehension deficits ("poor comprehenders") and compare them to typical readers and children with specific decoding deficits ("poor decoders"). Method: In Study 1, the authors identified 57 poor comprehenders, 27 poor decoders, and 98…
Descriptors: Reading Comprehension, Reading Difficulties, Grade 8, Reading Achievement
Defining Dyslexia as a Developmental Language Disorder: An Expanded View.
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Catts, Hugh W. – Topics in Language Disorders, 1996
Current research supporting the language basis of dyslexia is reviewed, suggesting that phonological processing deficits are at the core of dyslexia and less pronounced reading problems. The role of higher-level language functioning and phonological processing is considered in an expanded view of the language basis of reading disabilities.…
Descriptors: Definitions, Disability Identification, Dyslexia, Early Identification