This meta-analysis examined the effectiveness of supplemental Tier-2 mathematics interventions for students with mathematics difficulties (MD). We reviewed 39 experimental and quasi-experimental studies that included 40 independent samples, with 61 treatment groups. Utilizing robust variance estimation (RVE), results revealed a treatment effect of…

The report of the national response to intervention (RTI) evaluation study, conducted during 2011-2012, was released in November 2015. Anyone who has read the lengthy report can attest to its complexity and the design used in the study. Both these factors can influence the interpretation of the results from this evaluation. In this commentary, we…

Interventions based on the results of functional behavioral assessment (FBA) have been the topic of extensive research and, in certain cases, mandated for students with disabilities under the Individuals With Disabilities Education Act. There exist a wide variety of methods for conducting such assessments, with little consensus in the field. The…

The authors cite methodological and interpretive flaws in K. Kavale's earlier article (ED 150 124) claiming that psycholinguistic training is effective with handicapped students. They suggest that the practical significance of research must be considered as well as the statistical significance. (CL)

The article demonstrates that use of meta-analysis on studies investigating the effectiveness of psycholingistic training with handicapped children results in nonvalidation of the training--a conclusion which contradicts results reported earlier by K. Kavale. (SW)

Critiqued is a review by D. Hammill and S. Larsen which concluded that the effectiveness of psycholinguistic training with learning disabled children has not been demonstrated, and offered is a delineation of the variables which the author believes must be described and controlled in all efficacy studies. (DB)

Answered is Esther Minskoff's critique of a review by D. Hammill and S. Larsen which concluded that the effectiveness of psycholinguistic training with learning disabled children has not been demonstrated. (DB)

The peer interactions and cognitive levels of play of mildly developmentally delayed preschool children were compared as they participated in mainstreamed and specialized settings. They engaged in substantially higher rates of peer-related social behaviors and constructive play when mainstreamed. Factors affecting early childhood mainstreaming…