This meta-analysis examined the effects of family-school interventions on children's social-behavioral competence and mental health. One hundred and seventeen group design studies yielding 592 effect sizes constituted the current sample. Random effects models were estimated when calculating each pooled effect size estimate, and mixed effects…

This meta-analysis investigated the effects of learning video games on mathematics achievement of PreK-12th-grade students compared with traditional classroom instructional methods. Results from the 24 collected studies showed heterogeneity among effect sizes, both in magnitude and direction. Using a random effects model, a small but marginally…

The public narrative surrounding efforts to improve low-performing K-12 schools in the United States has been notably gloomy. But what is known empirically about whether school improvement works, which policies are most effective, which contexts respond best to intervention, and how long it takes? We meta-analyze 141 estimates from 67 studies of…

The question why people choose to vote or abstain in national elections has been extensively researched in the past decades. Yet, disagreement over what drives citizens to the polls persists. Literally, over a 100 different explanatory factors have been linked to the individual's decision to vote or abstain: ranging from individual characteristics…

Children who are dual language learners (DLLs) often have more difficulty acquiring English early literacy skills than their English monolingual peers. Much remains to be learned about efficacious early literacy instructional interventions and their effects on English early literacy skills of DLLs. The purposes of this systematic review were to…

Background: Sexual violence is associated with significant morbidity and mortality. The incidence of sexual violence against adults with intellectual disability is significantly higher than in the general population. The aim of this systematic review and qualitative meta-synthesis was to explore the barriers faced by adults with intellectual…

The present study examined the effect of technology-based writing instruction on writing outcomes using meta-analytic methods. Additionally, this study investigated whether characteristics of study, sample, and outcome moderated the effect of technology-based writing instruction. Six studies were coded resulting in 11 extracted effect sizes.…

This article evaluates the degree to which international students are satisfied with different dimensions of their university experience, namely, their arrival, living, learning, and support service experiences. Using quantitative survey research methods based on data from the International Student Barometer (ISB), the study evaluates the…

Reading and writing are critical to students' success in and outside of school. Because they draw on common sources of knowledge and cognitive processes, involve meaning making, and can be used conjointly to accomplish important learning goals, it is often recommended that reading and writing should be taught together. This meta-analysis tested…

In this research, the effects of cooperative learning on mathematics achievement in Turkey were examined by meta-analysis method. For this purpose, the average effect size value and the average effect size values of the moderator variables (cooperative learning technique, education level, learning domain and implementation period) were calculated.…

Research has demonstrated that in controlled experiments in which small groups are being tutored by researchers, reading-strategy instruction is highly effective in fostering reading comprehension (Palincsar & Brown, "Cognition and Instruction," 1(2), 117-175, 1984). It is unclear, however, whether reading-strategy interventions are…

The research-to-practice gap in special education refers to educators' limited use of practices that are supported by empirical evidence. Procedures specifying criteria for the determination of evidence-based practices (EBPs) in special education have the potential to address challenges associated with identifying EBPs. Although meta-analyses and…

The main goal of the present research is to systematically examine the available evidence for the effectiveness of different types of school-based interventions for reducing disciplinary school exclusion. Secondary goals relate to comparing different approaches (e.g., school-wide management, classroom management, restorative justice,…

Meta-analysis multiplicity, the concept of conducting multiple tests of statistical significance within one review, is an underdeveloped literature. We address this issue by considering how Type I errors can impact meta-analytic results, suggest how statistical power may be affected through the use of multiplicity corrections, and propose how…

The 40-year history of meta-analysis is traced from the vantage point of one of its originators. Research syntheses leading to the first examples of meta-analysis are identified. Early meta-analyses of the literature on psychotherapy outcomes and school class size are recounted. The influence on the development of meta-analysis of several…