Purpose: The purposes of this study were to: (a) meta-analyze the effects of academic press (AP) on K-12 student achievement in aggregate and in each examined learning subject; (b) meta-analyze the effect of school leadership of different leadership styles on AP; and (c) examine whether school level, subjects, and leadership or AP measures…

We present results from a meta-analysis of 37 contemporary experimental and quasi-experimental studies of summer programs in mathematics for children in grades pre-K-12, examining what resources and characteristics predict stronger student achievement. Children who participated in summer programs that included mathematics activities experienced…

This study utilized the quantitative meta-analysis technique to integrate chemistry education research findings conducted in the Philippines covering the period 2005-2016. It aimed to describe and examine the effects of teaching methodologies on academic performance in the secondary chemistry teaching-learning process. A search procedure and broad…

There is debate over the effectiveness of using touch-screen tablet technology on overall student learning gains. This article provides a meta-analysis of studies that used tablets for the delivery of math interventions, programs, or apps to increase student math achievement. A total of 20 group design studies with 2,805 participants were included…

The involvement load hypothesis (ILH) was designed to predict the effectiveness of instructional tasks for incidental L2 vocabulary learning. In this meta-analysis we examined 398 effect sizes from 42 empirical studies (N = 4,628) to explore (a) the overall predictive ability of the ILH, (b) the relative effects of different components of the ILH…

A concept map is a node-link diagram in which each node represents a concept and each link identifies the relationship between the two concepts it connects. We investigated how using concept maps influences learning by synthesizing the results of 142 independent effect sizes (n = 11,814). A random-effects model meta-analysis revealed that learning…

Teachers have an important influence on pupils' academic progress, yet the quality of teaching varies widely. Policymakers, school leaders, and teacher educators therefore face the challenge of designing and commissioning professional development (PD) to help all their teachers become as effective as the best teachers. In the last two decades, a…

This meta-analysis investigated the overall effects of glossing on L2 vocabulary learning from reading and the influence of potential moderator variables: gloss format (type, language, mode) and text and learner characteristics. A total of 359 effect sizes from 42 studies (N = 3802) meeting the inclusion criteria were meta-analyzed. The results…

The 3D virtual worlds (3DVWs) were widely used for language learning in the past two decades. Although numerous research studies acknowledged the affordance, a full-scale investigation that discussed how they can be applied to language learning with substantial evidence of effect sizes were not presented. Thus, this analysis aimed to synthesize…

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 influence of students' non-cognitive characteristics on their learning performance constitutes a significant but rather unexplored topic. The goal of the research presented in this article, is to examine the relation between the students' personality characteristics (as measured using the Big Five Personality Test) and their learning outcome…

Differential granting of extra-examination time (EET) is commonly based on learning disabilities (LD) status: EET is granted to LD examinees and is denied to nondisabled examinees. We argue that LD serves as a proxy for the extent to which time limitation affects the examinee's test score (e). Hence, the validity of the LD-based EET granting…

This paper reviews prior research to assess the effectiveness of Title I in closing the achievement gaps of disadvantaged students vis-à-vis their non-disadvantaged counterparts. A research synthesis approach is adopted to summarize national assessments of Title I conducted between 1966 and 2011. These analyses are supplemented by the authors'…

The goal of this Brief was to compile and analyze the available evidence of the impacts of public charter schools on students and schools. Using a series of five common claims made by proponents and opponents of public charter schools as an organizer, the existing empirical evidence was reviewed. The analysis revealed that student performance in…