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Lyon, G. Reid; Shaywitz, Sally E.; Shaywitz, Bennett A. – Annals of Dyslexia, 2003
This paper elaborates on components of a working definition of developmental dyslexia proposed in 1995 by G. R. Lyon. The 2003 revised definition, based on converging scientific evidence, was developed by a working group of the International Dyslexia Association. The new definition notes the condition's neurobiologic origin and typical presence of…
Descriptors: Cognitive Development, Definitions, Dyslexia, Elementary Education