Provides meta-analysis of 48 studies on computer-based instruction (CBI) in elementary schools based on literature searches in Educational Resources Information Center (ERIC) and Dissertation Abstracts. Highlights include aptitude treatment interaction; computer managed instruction (CMI); computer assisted instruction (CAI); weighting procedures;…

Two sets of meta-analyses examined gender effects on parents' observed language with their children. Findings indicated that mothers talked more, used more supportive and negative speech, and less directive and informing speech than fathers. Mothers talked more and used more supportive speech with daughters than sons. Effect sizes depended on…

Discusses questions answered and raised by the Cooper et al. study. Summarizes study's methodological contributions and emphasizes the more important lessons that meta-analysts may take from the study. Situates the study within literatures on summer learning and on education for poor/minority children. Discusses the potential for summer school to…

A meta-analytic review of all adequately designed field and laboratory research on the use of incentives to motivate performance is reported. Of approximately 600 studies, 45 qualified. The overall average effect of all incentive programs in all work settings and on all work tasks was a 22% gain in performance. Team-directed incentives had a…

Method: Sixteen studies on attachment in children with autism were reviewed, and ten studies with data on observed attachment security (N = 287) were included in a quantitative meta-analysis. Results: Despite the impairments of children with autism in reciprocal social interaction, the majority of the studies found evidence for attachment…

Researchers from Mid-continent Research for Education and Learning (McREL) have analyzed thousands of quantitative studies published over the last 30 years to determine what works in classrooms and in schools. In two earlier meta-analyses, McREL identified teacher and school practices that have the largest effects on student achievement. McREL has…

This article presents a guide that seeks to provide assistance to educational practitioners in evaluating whether an educational intervention is backed by rigorous evidence of effectiveness, and in implementing evidence-based interventions in their schools or classrooms. The guide is organized in four parts: (1) A description of the randomized…

Some methodological issues in the study of levels of knowledge are reviewed, and needs for further research are explored, drawing on an analysis of 12 studies reported since the late 1970s. In the 12 studies, 16 quantitative experiments were conducted. These were assessed for internal and external validity. Analysis revealed some shortcomings in…

This article presents a quantitative synthesis of examiner familiarity effects on Caucasian and minority students' test performance. Fourteen controlled studies were coded in terms of methodological quality (high vs. low) and race-ethnicity (Caucasian vs. Black and Hispanic). An analogue to analysis of variance conducted on weighted unbiased…

This meta-analysis explored how measuring student progress toward long vs. short-term goals affects achievement outcomes. Twenty-one controlled studies were coded in terms of measuring method (toward long- vs. short-term goals) and type of achievement outcome (probe-like vs. global achievement test). Analogues to analysis of variance conducted on…

A meta-analysis of inservice teacher education research determines the significance of the following factors for learning effectiveness: training objectives, training duration, training group characteristics, location and scheduling, sponsorship, participant incentives, structure, and instructional technique. Suggestions to help staff developers…

Review of 180 intervention studies identified instructional components that best predicted effect sizes for students with learning disabilities. These included sequencing, drill-repetition-practice feedback, segmentation of information, technology (structure-presentation medium), controlling task difficulty (e.g., scaffolding), modeling…

Although it is generally believed that early intervention programmes are an effective means to stimulate children's cognitive development, many questions remain concerning programme design and delivery. This article reviews 19 studies into the effectiveness of early intervention programmes published from 1985 onward. The database comprised 85…

Goal: Educators believe that parents can help their children learn to read. But what evidence supports this belief? And if parent involvement does matter, what kinds of parent involvement are most efficient? The goal of this report was to review the scientific literature on parent involvement in the acquisition of reading from kindergarten to…

A meta-analysis was performed to synthesize existing data concerning the effects of computer programing on cognitive outcomes of students. Sixty-five studies were located from three sources, and their quantitative data were transformed into a common scale--Effect Size (ES). The analysis showed that 58 (89%) of the study-weighted ESs were positive…