A meta-analysis by Tran, Sanchez, Arellano, and Swanson (2011) of the published RTI literature found that the magnitude of effect size (ES) between responders and low responders at posttest was significantly moderated by the pretest ES and the type of dependent measure administered, whereas no significant moderating effects were found in the mixed…

Eight years ago, the editors of this special issue published another special issue focused on the topic of response to intervention (RtI; Vaughn & Fuchs, 2003). At that time, there was considerable interest in the application of an RtI model for providing services to children at risk for learning disabilities. The potential benefits have led to…

The Education for All Handicapped Children Act (EHCA) was legislated in 1975 in part to provide funding to states, parent centers, and research centers, for supporting access to public education for students with disabilities. In 1975, the intent of EHCA was to find children with disabilities and ensure that children were evaluated, identified,…