We conducted a descriptive analysis and meta-analysis of single-case research design (SCRD) studies investigating the effectiveness of the graduated guidance procedure. Once we identified studies through electronic databases and reference lists, we used What Works Clearinghouse (WWC) Standards to evaluate each study. Then, we described studies in…

Identifying mathematical interventions that practitioners can implement to improve the mathematical problem solving (PS) of students is a need for the field. Literature on the PS performance of students with disabilities has grown; recently, schema instruction (SI) has been suggested as an evidence-based practice. The purpose of this study was to…

Mobile technology has become ubiquitous in the education and support of individuals with disabilities. While this practice is supported under the Universal Design for Learning framework, research in the area has yet to establish a solid evidence base. The majority of the studies in existence are single-subject design studies with a dearth of…

The current study examined the use of video modeling (VM)-based interventions to reduce the challenging behaviors of students with emotional or behavioral disorders. Each study was evaluated using Council for Exceptional Children's (CEC's) quality indicators for evidence-based practices. In addition, study effects were calculated along the three…

We used meta-analysis to examine the criterion validity of four scoring procedures used in curriculum-based measurement of written language. A total of 22 articles representing 21 studies (N = 21) met the inclusion criteria. Results indicated that two scoring procedures, correct word sequences and correct minus incorrect sequences, have acceptable…

The two most frequently used methods for assessing performance on chained tasks are single opportunity probes (SOPs) and multiple opportunity probes (MOPs). Of the two, SOPs may be easier and less time-consuming but can suppress actual performance. In comparison, MOPs can provide more information but present the risk of participants acquiring…

The purpose of this review was to identify naturalistic language interventions for increasing spontaneous expressive language (defined in this review as absence of verbal prompt or other verbalization from adults or peers) in young children with autism spectrum disorder. Also, the methodological rigor and effectiveness of each study were evaluated…

A wealth of research has been conducted into emergent literacy (i.e., precursors to formal reading) skills and development in typically developing (TD) children. However, despite research suggesting children with autism spectrum disorder (ASD) are at risk of reading challenges, limited research exists on their emergent literacy. Thus, we aimed to…

The identification of evidence-based practices continues to provoke issues of disagreement across multiple fields. One area of contention is the role of single-subject design (SSD) research in providing scientific evidence. The debate about SSD's utility centers on three issues: sample size, effect size, and serial dependence. One potential…

Four overlap methods for quantitatively synthesizing single-subject data were compared to visual analysts' judgments. The overlap methods were percentage of nonoverlapping data, pairwise data overlap squared, percentage of data exceeding the median, and percentage of data exceeding a median trend. Visual analysts made judgments about 160 A-B data…

Treatment fidelity reporting practices are described for journals that published general and special education intervention research with high impact factors from 2005 through 2009. The authors reviewed research articles, reported the proportion of intervention studies that described fidelity measurement, detailed the components of fidelity…

The authors sought to (a) identify interventions that immediately increased the oral reading fluency of students with or at risk for disabilities, (b) estimate to what extent these gains maintained over time, and (c) evaluate whether particular characteristics of students (e.g., gender, disability status) predicted their response to fluency…

The paper explores the conceptual bases of the controversy over meta analysis and computes it with traditional research on four dimensions: (1) scientific rigor, (2) detecting small effects, (3) problems of oversimplification, and (4) potential policy impact. It is argued that choice of procedures should be determined by the specific purpose of a…

In this introduction to the applicaton of meta-analysis as a quantitative synthesis technique, several alternative approaches to research synthesis are described. Their advantages and disadvantages, as compared to those of the techniques of meta-analysis. Decisions that must be faced by the prospective user of meta-analysis are described.…

Forty-three language intervention studies published during the 1970s were critically analyzed. Findings indicated that, in general, studies have not paralleled current psycholinguistic thinking. Only 34.8% of the studies were successful in increasing the communicative competence of their severely handicapped subjects. (Author/CL)