This meta-analysis synthesizes experimental and quasi-experimental research
on instruction that enhances the mathematics performance of students in
grades 1-12 with learning disabilities (LD). For the purpose of this study, we
defined mathematical interventions as instructional practices and activities that
attempt to enhance the mathematics achievement of students with LD. In our
analysis, we included only randomized controlled trials (RCTs) and quasiexperimental
designs (QEDs) with clear evidence of pretest comparability.
The major findings are presented below: