In this article, the authors consider the power and limitations of responsiveness-to-intervention (RTI) for reducing the need for ongoing and intensive services for the segment of the school population traditionally identified as having a learning disability in mathematics. To assess the robustness of RTI, the authors describe four studies with…

This meta-analysis investigated the effects of formative evaluation procedures on student achievement. Twenty-one controlled studies generated 96 relevant effect sizes (average weighted effect size .70). Magnitude of effect of formative evaluation was associated with publication type, data-evaluation method, data display, and use of behavior…

There is increasingly negative sentiment against IQ-achievement discrepancy as a method to identify children with learning disabilities (LD) and, more broadly, intelligence as an explanation of poor academic performance. The evidence for this latter view was examined by reviewing 13 studies involving 1,542 children who were at risk or reading…

This meta-analysis explored how measuring student progress toward long vs. short-term goals affects achievement outcomes. Twenty-one controlled studies were coded in terms of measuring method (toward long- vs. short-term goals) and type of achievement outcome (probe-like vs. global achievement test). Analogues to analysis of variance conducted on…