This article reviews the efforts made since 1962 to define learning disabilities, discusses 11 prominent definitions, identifies important conceptual elements on which the definitions differ, and calls for a consensual acceptance of the National Joint Committee on Learning Disabilities definition. (PB)

This article argues that the regression-based discrepancy method used in the diagnosis of learning disabilities is invalid because it is inconsistent with the underlying underachievement concept of which it is intended to be the operationalization. It is mathematically demonstrated that the regression-based discrepancy method largely reflects…

This commentary re-examines Linda Siegel's four basic assumptions (in EC221505) inherent in the Intelligence Quotient-achievement discrepancy commonly used to define learning disability. The commentary also discusses the uses of alternative measures of intelligence and the role of Intelligence Quotient in the identification of learning-disabled…

These concluding comments on the series of articles introduced by Linda Siegel's paper (EC221505) summarize the bases for disputing the utility of intelligence tests. The learning disabilities field's resistance to abandoning use of Intelligence Quotient tests is also acknowledged, and improved assessment measures and further research are called…

This response to a paper by Linda Siegel (EC221505) on the relationship between Intelligence Quotient and learning disabilities addresses the differences between classification and identification, limitations in Siegel's conceptualization of intelligence, and the representation of the language and learning domains subsumed within the learning…

In response to Gresham and Elliott (1989), who concluded that a social skills deficit should not constitute a learning disability, this paper claims that current definitions allow for including social skills deficits. They propose limiting the definition of learning disabilities to intentional learning contexts, thus excluding social skills…

Issues raised in responses to Linda Siegel's paper (EC221505) on the relationship between intelligence test scores and learning disabilities are addressed. Discussed are the nature of intelligence, classification of learning disabilities by discrepancy between intelligence test scores and achievement scores, the existence of learning disabilities,…

This article asserts that the learning disabilities field must (1) address causality in differentiating learning disabilities from other learning problems, (2) expand prevailing approaches to individualizing instruction so that intrinsic motivation is accounted for in a systematic, comprehensive manner, and (3) move beyond piecemeal programs to…

In agreement with Coles (EC 220 146), the article presents: a sketch of how the learning disability field was born, the sociological reasons why the field inadvertently moved beyond its original intentions, and how Coles aims for advances in the theory and practice of diagnosing learning problems. (DB)

Factors that may explain the increase in the prevalence of learning disabilities are explained. One factor is related to the newness of learning disabilities as a discipline, and one is related to social/cultural changes (such as substance abuse, poverty, and lack of social support) that have occurred in U.S. society. (JDD)

Use of the discrepancy approach in defining learning disabilities is challenged, as intelligence tests do not measure potential, are not independent from what is measured by achievement tests, and are not powerful predictors of low reading performance. Use of intelligence tests in analysis, identification, and definition of learning disabilities…

This article addresses the proposal of Shaw and others (1995) to replace the current federal definition of learning disabilities with an operationalized version proposed by the National Joint Committee on Learning Disabilities in the reauthorization of the Individuals with Disabilities Education Act. Comparison of Shaw's recommendations with…

Problems in the application of traditional process-oriented approaches to diagnosis and treatment of learning disabilities suggest a need to alter the manner in which these basic processes are conceptualized and measured. (Author)

This paper urges a deeper consideration of the role of psychometrically defined intelligence in the operationalization of aptitude/achievement discrepancies inherent in most definitions of learning disability. It proposes a new disability, dysrationalia, the inability to think and behave rationally despite adequate intelligence. (DB)

A review of the history and current status of screening and differential diagnosis in the field of learning disabilities concludes that continued efforts at refinements in diagnosis/classification are unproductive. The authors offer a variety of concrete recommendations from a data-based perspective to make appropriate educational experiences…