This article describes the historical evolution of U.S. federal education policy as it pertains to the constructs of disability and giftedness, which were originally treated as distinct domains. However, policy shifts and research initiatives revealed the intersection of the two domains, which led to recognition of twice-exceptional individuals as…

This chapter examines how studies focused on the same topic--disproportionality in special education--can generate vastly different conclusions about its sources and causes. By analyzing existing disagreements in the field, we explore essential questions about what constitutes high-quality and relevant evidence when seeking to understand how,…

This review documents the learning disabilities (LD) identification criteria and procedures utilized in empirical research including students with LD published from 2001 to 2013 in three journals dedicated to the study of LD. Results reveal several troublesome findings related to transparency in reporting and the coherence of the LD construct.…

This brief report summarizes research on dyslexia. It is intended to provide an initial look at this common type of learning disability that impacts 1 in 5 students. Included in the brief are links to the original source material and to supplementary resources and videos to learn more.

This review provides an introduction to response to intervention (RTI), including how it is defined, reasons for its growing popularity, an introduction to an emerging body of research, a brief discussion of what it all means, and suggestions about directions for future research. [This was originally published as part of a larger study, "The…

Position papers of the National Joint Committee on Learning Disabilities during 1981-1994 and information about this committee's history, mission, and operational procedures are presented. The position papers and statements are as follows: "Learning Disabilities: Issues on Definition" (1981); "In-service Programs in Learning…