The meta-analysis by A. C. Willig of bilingual education evaluation literature was not successful in comparison with and did not replicate the Baker and de Kanter narrative review. Willig's conclusion that bilingual education is effective is not supported by the analysis. (SLD)

A meta-analysis of the early intervention research literature revealed that early intervention has an immediate positive effect of about on-half of a standard deviation. The analysis failed to find long-term benefits and failed to relate degree of parental involvement to intervention effectiveness. (KH)

A meta-analysis of home visiting programs (K = 12, N = 2869) examined differences in the effects of home visitor programs for at-risk families on maternal behavior. Studies selected included only peer-reviewed publications and evaluations with a control group design. Although effect sizes varied, programs with more frequent visitation had higher…

A meta-analysis (37 published studies) that summarized treatment outcomes associated with skills training with antisocial youth was performed. As is consistent with the hypothesis, results indicate that skills training interventions delivered in the context of homogeneous groups of deviant peers produced smaller benefits than did skills training…

Presents a meta-analytic review of evaluations of state-funded preschool programs over 20 years. Identifies several methodological flaws but also suggests that pattern of findings offers modest support for positive impact in improving children's developmental competence, improving later school attendance and performance, and reducing subsequent…

The statewide implementation of instructional support teams (ISTs) in Pennsylvania is analyzed in terms of the challenge of bringing team-based problem-solving models to scale. The history of the phase-in of ISTs in more than 1,700 elementary schools is presented, and the salient research conducted on ISTs is reviewed. The results indicate that…

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…

Smoking in pregnancy is a serious health risk to mother and baby that is associated with premature birth, low birth weight and respiratory disorders. Recently it has become apparent that smoking in pregnancy can have long-term consequences for the child, including learning difficulties, elevated risk of diabetes, obesity and asthma. Over the past…

This article explores the state of skills development for smaller enterprises in South Africa through a consideration of two recent empirical studies of very small and micro enterprises (VSMEs--those with 2-10 employees). It provides new evidence about the complexity of the VSME sector and the mixed performance of state attempts to engage with it…

This meta-analysis reviews experimental and quasi-experimental studies in which students learned by constructing, modifying, or viewing node-link diagrams. Following an exhaustive search for studies meeting specified design criteria, 67 standardized mean difference effect sizes were extracted from 55 studies involving 5,818 participants. Students…

There is increasingly negative sentiment against IQ-achievement discrepancy as a method to identify children with learning disabilities (LD) and, more broadly, intelligence as an explanation of poor academic performance. The evidence for this latter view was examined by reviewing 13 studies involving 1,542 children who were at risk or reading…

Preliminary findings of an analysis of Head Start research evidence amassed from 1965 to the present are reported in this document, along with a summary of conclusions from related studies of preschool programs. Specifically presented are long-term findings of the Consortium for Longitudinal Studies concerning the lasting benefits of preschool…

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…

The sourcebook is for those people who serve as administrators of adult basic, adult secondary, and/or adult English-for-speakers-of-other-languages (ESOL) programs, whether those programs are school-based, community-based, or community-college-based. This is one of the various tools developed through the National Center for the Study of Adult…

Prior meta-analytic studies have provided evidence for the effectiveness of creativity training. In the present study, 156 training programs were obtained and a content analysis was used to appraise these programs with respect to: a) cognitive processes, b) training techniques, c) media, and d) types of practice exercises. A cluster analysis was…