A meta-analysis of instructional research with students with learning disabilities in the domains of word recognition and reading comprehension indicates effect sizes for comprehension measures were higher when studies included derivatives of both cognitive and direct instruction, whereas effect sizes were higher for word recognition when studies…

This article summarizes single-subject design intervention studies that include students with learning disabilities. Effect sizes of 85 studies were analyzed across instructional domains, sample characteristics, intervention parameters, and methodological procedures. Findings are supportive of the pervasive influence of cognitive strategy and…

This paper reviews research on grouping of students within classes and its effects on learning. Primary consideration is given to grouping and mixing students by ability, though consideration is also given to grouping and mixing students by ethnicity and gender as well as to research on the effects of group size. Results of meta-analyses of…