Argues that use of intelligence as an aptitude benchmark in the definition of dyslexia conceals illogical assumptions about the concept of potential. Concludes that the validity of a severe discrepancy between aptitude and achievement as the defining feature of dyslexia has yet to be established sufficiently to justify differential educational…

Reviews attempts to adequately define dyslexia with a focus on recent efforts at developing a nosology of dyslexia and discusses the neurological basis of reading and severe reading failure with an emphasis on validating evidence provided through brain-mapping procedures and postmortem studies. (HOD)

Evaluates the hypothesis that dyslexic children have a specific deficit in phonological reading processes to elucidate the characteristics of developmental dyslexics' reading skills. Finds no evidence for distinct subtypes of dyslexia, although recent conceptualizations of reading development provide a better framework in which to investigate…

Explores how well measures of verbal short-term memory and naming speed tasks predict children's reading achievement under various IQ control conditions. Both were effective, but when controlling for verbal IQ, memory measures are less reliable, whereas digit-naming speed remains a significant predictor of reading achievement. (MM)