This study set out to re-examine the effectiveness of study abroad programs in second language (L2) acquisition through a multi-level meta-analysis. Overall, 42 primary studies published between 1995 and 2019 were identified, and in total 283 effect sizes were meta-analysed. This study implemented a three-level random effects model to account for…

This study synthesised previous literature focused on college English for Academic Purposes (EAP) programmes for writing. A meta-analysis of identified longitudinal studies (14 samples; 175 effect sizes; N = 602) revealed that the students improved their English writing through EAP programmes (d = 0.45, SE = 0.07, p < 0.001). By computing…

The objectives of this two-part study were to: (a) investigate English learner (EL) accommodation practices on state accountability assessments of reading/English language arts and mathematics in grades 3-8, and (b) conduct a meta-analysis of EL accommodation effectiveness on improving test performance. Across all distinct testing programs, we…

Peer tutoring is an instructional strategy that allows students to help one another learn content material through the repetition of key concepts. In more than 40 years of published studies, literature reviews, and meta-analyses of peer tutoring, this quantitative synthesis of the literature is the first to examine the impact of peer tutoring on…

A meta-analysis was performed to investigate the impact of extensive reading (ER) on reading proficiency. This study gathered 71 unique samples from 49 primary studies published from 1980 to 2014 involving a total of 5,919 participants. Effect sizes were generated separately according to two different study designs: experimental-versus-control…

This study examines the use of e-portfolios for ESL (English as a second language) learners. The data were collected by reviewing 11 empirical studies from 2010-2012 in order to synthesize meaningful information about e-portfolios for ESL/EFL (English as a foreign language) acquisition. The studies were coded into two main categories: learning…

To facilitate second language learning, it has become increasingly popular to use a second language as the medium of instruction for content subjects for majority language students. Although numerous research studies have shown the advantages of such kind of programs in North America and Europe, those investigating English as the Medium of…

nter arguments are presented to defend the author's data selection practices and to point out pitfalls in Baker's critique. (SLD)

The meta-analysis by A. C. Willig of bilingual education evaluation literature was not successful in comparison with and did not replicate the Baker and de Kanter narrative review. Willig's conclusion that bilingual education is effective is not supported by the analysis. (SLD)