Each of the five articles in this special issue gets "into the weeds" in terms of studying actual classroom or school implementation of evidence-based or promising practices. Virtually all confront the issue of logistics and establishing an infrastructure for ensuring adequate implementation. In general, those studies that ask teachers…

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…

This article is intended to supplement a published research report (Gersten, Baker, Smith-Johnson, Dimino, & Peterson, in press) on an instructional intervention study by discussing some of the behind-the-scenes issues that typically do not appear in a published research report. In particular, I discuss how use of design experiments helped shape…

Critiques K. Kavale's meta-analysis, which reported reliable significant correlations between auditory-perceptual skills and reading achievement. Concludes that Kavale fails to provide evidence that teaching auditory-perceptual skills is useful to learning disabled children unless skills are functional reading skills. (Author/CL)

This essay begins by discussing the current cynicism regarding the usefulness of research-based strategies in the field of education. Using examples of high-quality research that utilizes diverse methodologies, a framework is presented for thinking about various types of research and their implications. (Contains references.) (Author/CR)

This article discusses critical issues related to conducting high-quality intervention research using experimental and quasi-experimental group designs. The importance of defining the nature of the independent variable, the value of measuring implementation, and the improvement of the quality of quasi-experiments are among the controversial topics…

The authors of an article on research and professional development of general education teachers who have students with learning disabilities respond to a commentary. They address the distinct research traditions of general education researchers and special education researchers and urge the integration of their particular research methodologies…

This paper, a result of a series of meetings of researchers, discusses critical issues related to the conduct of high-quality intervention research in special education using experimental and quasi-experimental designs that compare outcomes for different groups of students. It stresses the need to balance design components that satisfy laboratory…

The site variability issue for Direct Instruction Follow Through sites is examined from a variety of perspectives--meta-analysis of the Abt Associates' data, norm-referenced comparisons, and a longitudinal look at stability of effects. Much of the seemingly unexplained variability found in both the Abt report and the reports by M. Kennedy and E.…

This introductory commentary discusses the following articles on studies that used in-depth case studies of students with learning disabilities to document individuals' progress over time, as well as the relationship between reading and writing instruction and students' development of self-regulation. The benefits of qualitative research are…

Criticizes methodology and findings reported in the "Consequences" article, particularly in regard to disparities in characteristics of the samples, validity of the measures, and interpretation of results. (NH)