Research syntheses that evaluate bilingual program effectiveness have grown exponentially since the 1980s. Contradictory to earlier anti-bilingual findings, these research syntheses, including statistical meta-analyses, have converged on findings supporting L1 teaching. This study examines the methodological soundness of eight statistical…

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)…

This meta-analysis synthesized the effects of the English medium instruction and content and language integrated learning (EMI-CLIL) approach on secondary-level students' English learning. The dataset included 44 samples (N = 7,434) from 38 primary studies. The results revealed EMI-CLIL's overall effectiveness for the development of English…

Background/Context: Literacy skills are critical to understanding information presented in written or oral formats and communicating effectively with others. These skills are important to students' success in school and later in life, including improved individual health and economic outcomes, increased civic engagement, and enhanced community…

Many nations have attempted to create different language-in-education policies that would cater not only to the needs of learners but also to the demands of preserving a country's native languages. The emergence of multilingual education has led to a proliferation of research that shows the benefits of using a learner's first language. These…

This article reports the results of a meta-analysis of the effectiveness of peer-mediated learning for English language learners. Peer-mediated learning is presented as one pedagogical tool with promise for interrupting a legacy of structural and instructional silencing of culturally and linguistically diverse students. Oral language…

A 1996 literature review of 75 "methodologically acceptable" studies concluded that bilingual education was not beneficial. A reexamination of the literature review found only 11 studies that actually were methodologically acceptable. The application of metaanalysis to those 11 studies shows that at least some native language instruction is…