The language used as a medium of instruction (MOI) has implications for learning outcomes. In most African classrooms, an international language is solely or dominantly used as an MOI. There is a debate about how this practice is associated with students' learning outcomes. This study uses Zambian PISA for Development 2018 data and school fixed…

This review-specific protocol guides the review of research that informs the What Works Clearinghouse (WWC) intervention reports in the English learners (EL) topic area. The review-specific protocol is used in conjunction with the "WWC Procedures and Standards Handbooks (version 4.0)." ELs are among the fastest-growing population in U.S.…

We examined whether English language proficiency (ELP) related to interim reading and math performance differently when academic assessments were administered to students in either English or Spanish. We also tested these effects with Spanish language proficiency (SLP) as well as jointly with ELP and SLP. Students from a midwestern suburban school…

This is the 2020-2021 annual report on the academic progress of English language learners in Miami-Dade County Public Schools. This report addresses the following three areas: (1) Demographic characteristics of students classified as English Language Learners (ELL); (2) English language acquisition results of ELL students on the State's English…

Language immersion education uses a non-English language for a significant portion of instruction. One goal is to develop bilingual students, which many argue provides cognitive benefits. Using data from school choice lotteries, I estimate the effect of random assignment to a language immersion school on achievement in math and reading. Winning…

To examine speaker role models (SRMs) in second language acquisition (SLA), this study explored the sociolinguistic "English as a lingua franca" (ELF) perspective targeting international intelligibility. Thus, it examined the way ELF learners align with self-selected English speakers and anonymous (audio-recorded) English speakers as…

This study employed a questionnaire to investigate the level, sources, and coping strategies of English learning anxiety among non-English major undergraduates in a Chinese local normal university under blended learning mode. The study revealed that non-English major undergraduates in a Chinese local normal university generally experienced a…

There is strong controversy over the application and effects of the Linguistic Immersion Policy in Catalonia, a policy that established that the Catalan language should constitute the only vehicular language during the different levels of compulsory schooling. While some of the effects of this policy have been determined, the evidence on other…

Recent research suggests that using additional teachers to provide small-group instruction or tutoring substantially improves student learning. However, treatment effects on test scores can fade over time, and less is known about the lasting effects of such interventions. We leverage data from a Norwegian large-scale field experiment to examine…

This is the 2019-2020 annual report on the academic progress of English language learners in Miami-Dade County Public Schools. This report addresses the following two areas: (1) Demographic characteristics of students classified as English Language Learners (ELL); and (2) English language acquisition results of ELL students on the English Language…

There is a considerable amount of research investigating the impact of variables such as age, gender, and cognitive ability on second language acquisition. In second language acquisition, besides such individual variables, equal importance should be given to the social demographic variables. Therefore, it is crucial to direct this focus towards…

In this study, we investigate the growth trajectory of 519 students in a vocational senior high school in Taiwan. The group-based trajectory model identifies 3 subgroups with distinct trajectories of academic achievement in Math and English. This study reveals baseline predictive factors associated with these trajectories as well as relationships…

This study investigated whether students' gender, prior achievement, and socioeconomic status (SES) moderated the magnitude of teacher expectation effects on students' English-as-a-foreign-language (EFL) achievement. A sample of 30 university teachers and 845 first-year undergraduate students from EFL classrooms participated in the study. Data on…

Many English-medium universities employ a compensatory model to establish cutscores on English language proficiency tests for student admissions. In this model, students can have different scores on different sections of the test provided their overall score meets the admission cutscore. This practice raises questions regarding potential variation…

This is the 2018-2019 annual report on the academic progress of English language learners in Miami-Dade County Public Schools. This report addresses the following three areas: (1) Demographic characteristics of students classified as English Language Learners (ELL); (2) English language acquisition results of ELL students on the English Language…