This article presents the results of a comprehensive review of 128 studies on teaching reading to individuals with significant cognitive disabilities. The review compared these studies against the National Reading Panel's components of reading; although it revealed an inadequate consideration of the components of reading, it found strong evidence for teaching sight words using systematic prompting and fading. The reviewers considered not only the number of studies, but also indicators proposed for evidence-based practice and effect size. This study identified some high quality studies with strong effect size for comprehension and fluency, but only one phonics study was strong in both quality and effects. Additional research is needed to promote broader skills in literacy for this population.

Self-determination, the combination of skills, knowledge, and beliefs that enable a person to engage in goal-directed, self-regulated, autonomous behavior, has become an important part of special education and related services for people with disabilities. Research on the outcomes of self-determination interventions has been sparse. In this study, we conducted a comprehensive review of literature and used quantitative methods of meta-analysis to investigate what self-determination interventions have been studied, what groups of individuals with disabilities have been taught self-determination, and what levels of outcomes have been achieved using self-determination interventions. Fifty-one studies were identified that intervened to promote one or more components of self-determination; 22 were included in meta-analyses. The median effect size across 100 group intervention comparisons (contained in 9 studies) was 1.38. In contrast, 13 single subject studies included 18 interventions and produced a median percentage of nonoverlapping data (PND) of 95% with a range of 64% to 100%. Seven of the interventions had a PND of 100%, suggesting strong effects. Although all components of self-determination were reflected in this research, most focused on teaching choice making to individuals with moderate and severe mental retardation or self-advocacy to individuals with learning disabilities or mild mental retardation. The outcomes are discussed regarding the need to demonstrate that self-determination can be taught and learned, and can make a difference in the lives of individuals with disabilities.

This article reports on a comprehensive literature review and meta-analysis of 68 experiments on teaching mathematics to individuals with significant cognitive disabilities. Most of the studies in the review addressed numbers and computation or measurement. Within the computation studies identified, most focused on counting, calculation, or number matching. For the measurement studies, nearly all focused on money skills. Of the 54 single subject design studies, 19 were classified as having all quality indicators for research design (13 representing the National Council of Teachers of Mathematics Measurement standard and 6 representing the Numbers and Operations standard). These studies offer strong evidence for using systematic instruction to teach mathematics skills and for using in vivo settings.

, B. (2007). Training teachers to follow a task analysis to engage middle school students with moderate and severe developmental disabilities in gradeappropriate literature. Focus on Autism and Other Developmental Disabilities, 22(4), 206-219.

The purpose of this review was to examine the body of research on teaching mathematics to students with moderate and severe developmental disability that has been published since 2005, reflecting changes in both the academic expectations for this population and research and design standards in the evidence-based practice (EBP) era. We examined research on teaching mathematical skills for students with moderate and severe developmental disability from 2005–2016 and found 36 studies (33 single-case and three group-experimental studies), updating the Browder, Spooner, Ahlgrim-Delzell, Harris, and Wakeman analysis. Of the 36 studies included in the review, 22 single-case and three group-design studies received a rating of high or adequate quality using the National Technical Assistance Center on Transition (NTACT) indicator criteria. In addition to systematic instruction, instructional procedures of technology-aided instruction, graphic organizers, manipulatives, and explicit instruction were found to be EBPs in teaching mathematics to this population.