Twice-exceptionality (2e), broadly defined as the co-occurrence of a gift or talent and a disability, has been a part of the educational lexicon since the 1990s, although its empirical backing is limited. We conducted a comprehensive review of the empirical literature on 2e and created a simulation study of 2e. For the latter, we constructed…

We investigated the variability across states in the prevalence of learning disabilities (LD) as reported by the U. S. Department of Education's Office of Special Education Programs (OSEP). This expanded upon the work of Hallahan and colleagues on interstate prevalence rate variability of special education disability categories by focusing on a…

The goal of this study was to investigate the relationship between classroom environmental variables (that is, physical classroom environment, availability of reading materials, teacher support during reading instruction) and reading engagement among students with learning disabilities in junior secondary schools (JSS) in Ibadan, Nigeria. The…

Background: Although Mauritius has adopted an inclusive education policy for learners with special education needs, it has not yet been implemented. Little is known about how teachers support learners experiencing reading and writing difficulties (RWD) in mainstream government primary schools. Aim: The aim of the study was to describe the…

Students who are Black or Hispanic are now reported to be less likely to be identified as having disabilities than similarly situated students who are White. Although repeatedly replicated, this finding is often characterized as in error. I use a new statistical technique, the E-value, to quantify the likelihood that unmeasured confounding…

We used time-varying effect modelling of two very large samples of fourth-grade students (N[subscript reading] = 148,240, N[subscript mathematics] = 152,220) to investigate associations between adoption and over-time implementation of a de facto cap on special education service receipt and over-time likelihoods of disability identification from…