This article presents quality indicators for experimental and quasi-experimental studies for special education. These indicators are intended not only to evaluate the merits of a completed research report or article but also to serve as an organizer of critical issues for consideration in research. We believe these indicators can be used widely, from assisting in the development of research plans to evaluating proposals. In this article, the framework and rationale is explained by providing brief descriptions of each indicator. Finally, we suggest a standard for determining whether a practice may be considered evidence-based. It is our intent that this standard for evidenced-based practice and the indicators be reviewed, revised as needed, and adopted by the field of special education.

The purpose of this meta-analysis was to synthesize findings from 42 interventions (randomized control trials and quasi-experimental studies) on instructional approaches that enhance the mathematics proficiency of students with learning disabilities. We examined the impact of four categories of instructional components: (a) approaches to instruction and/or curriculum design, (b) formative assessment data and feedback to teachers on students' mathematics performance, (c) formative data and feedback to students with LD on their performance, and (d) peer-assisted mathematics instruction. All instructional components except for student feedback with goal-setting and peer-assisted learning within a class resulted in significant mean effects ranging from 0.21 to 1.56. We also examined the effectiveness of these components conditionally, using hierarchical multiple regressions. Two instructional components provided practically and statistically important increases in effect size–teaching students to use heuristics and explicit instruction. Limitations of the study, suggestions for future research, and applications for improvement of current practice are discussed.

We review the body of research on reading comprehension for students with learning disabilities. First, we describe the factors that lead to the comprehension difficulties of these students. Next we describe our procedures for reviewing the literature on effective instructional methods for this population. Next we review the body of studies involving instructional methods for improving the comprehension of narrative text. This is followed by the research on techniques for improving the comprehension of expository text. We conclude with a discussion of ongoing issues in the field—in particular, (a) the increased use of socially mediated instruction, (b) the need to teach multiple strategies to students to improve comprehension, and (c) controversies in how important it is to explicitly teach specific strategies versus merely providing flexible frameworks to structure dialogue on texts read.