Some children experience more difficulty than others becoming literate, often at great emotional, intellectual, social, and economic cost to themselves, but also to those who love and care for them, and for society at large. The causes of those difficulties and what to do about them have been the source of much research and sometimes heated…

A study of 14 males with fragile X syndrome, 12 females with Rett Syndrome, and 25 individuals with other developmental disorders found that among those with fragile X syndrome, none of the 11 who did not have a diagnosis of autism met the Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria for pervasive developmental disorder.…

Discusses what children with developmental language disorders should be called, how they should be defined, and how we might differentiate children with specific language impairments from other children with developmental language disorders. The lack of congruence between clinical and research constructs is discussed. (Author/CR)

Discusses the definition of dyslexia, reintroduces the concept of marker variables, proposes a strategy for developing an updated marker variable system, presents a preliminary working set of dyslexia marker variables, and calls for eventual adoption of this or similar marker variable systems to facilitate future research efforts. (Author/CR)

It is argued the proposed definition of dyslexia is restricted to developmental dyslexia in which a student struggles to learn to read and does not apply to acquired dyslexia in which a previously normal reader loses reading functions. The need for classification schemes for defining specific learning disabilities is emphasized. (Contains…

This article discusses using the term "general learning disorder" instead of "mental retardation." It addresses the offensiveness of the current label, discusses ingredients needed in a more appropriate diagnostic term, and offers a proposed grouping of developmental disabilities based on cognitive ability, language ability, physical ability, and…

The effects of broadening the definition of eligibility for services from the Washington State Division of Developmental Disabilities (DDD) are analyzed. Five different definitions are discussed. The existing definition includes: (1) "statutory conditions," which includes persons who are mentally retarded or have difficulty carrying out…