Word boxes (also known as sound boxes or Elkonin boxes) is a widely used intervention targeting basic literacy skills. The word/sound box intervention has been implemented across grades, settings, and student ability levels, but to date there has not been a quantitative analysis of the effects of the word/sound box intervention. The purpose of the…

To address the evidence gap in making effective language of instruction (LOI) decisions, we propose a systematic review of the role of LOI choices in education programs and policies on literacy outcomes in multilingual educational contexts in low- and middle-income countries (LMICs). Grounded in a multidisciplinary theory of change (ToC)…

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…

Reading Recovery is one of the most researched literacy programs worldwide. Although there have been at least 4 quantitative reviews of its effectiveness, none have considered all rigorous group-comparison studies from all implementing nations from the late 1970s to 2015. Using a hierarchical linear modeling (HLM) v-known analysis, we examined if…

Background: For a majority of the world's children, despite substantial increases in primary school enrollment, academic learning is neither occurring at expected rates nor supplying the basic foundational skills necessary to succeed in the 21st century. The significant lag in academic achievement tells us that simply making formal education…

This meta-analysis reviewed research on summer reading interventions conducted in the United States and Canada from 1998 to 2011. The synthesis included 41 classroom-and home-based summer reading interventions involving children from kindergarten to Grade 8. Compared to control group children, children who participated in classroom interventions,…

The purpose of this study is to examine the effects of morphological instruction on language and literacy outcomes by synthesizing 92 standardized mean differences (d) from 30 independent studies. Findings show a moderate overall effect of morphological instruction ([d-bar] = 0.32), suggesting that children receiving morphological instruction…

This meta-analysis examines the effectiveness of a group of instructional approaches (i.e., cooperative, collaborative, and peer tutoring) at improving literacy outcomes for English language learners. Main effects analyses of a sample of 28 experimental and quasi-experimental studies reveal that peer-mediation is more effective for ELLs than…

Background: Many countries rely on immigrants for population growth and to maintain a skilled workforce. However, many such immigrants face literacy-related barriers to success in education and in the labour force. Aims: This meta-analysis reviews experimental and quasi-experimental studies to examine strategies for teaching English literacy to…

The findings of a meta-analysis of the effect of reading instruction on the reading skills of students with or at risk of behavioral disorders (BD) are reported. The goal of the synthesis was to extend the work of Coleman and Vaughn by (a) detailing independent variables and outcome measures for each study, (b)including studies sampling from…

This review focuses on intervention studies that tested whether parent-child reading activities would enhance children's reading acquisition. The combined results for the 16 intervention studies, representing 1,340 families, were clear: Parent involvement has a positive effect on children's reading acquisition. Further analyses revealed that…

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…