The rising demand for dual-language immersion (DLI) programs, which offer core instruction in two languages from early grades onward, has raised questions about program design and access. We leverage the rapid expansion of DLI schools across the U.S. state of Utah to estimate effects of DLI program availability on the academic achievement of…

Ability grouping, organizing classes homogeneously by L2 proficiency, has been commonly used in Taiwanese English as a Foreign Language (EFL) classes. This quasi-experimental (within-subjects design) study examined proficiency gains of 785 Taiwanese university students over three years enrolled in a general English (GE) program that employed…

Dynamic Assessment (DA) is a postmodern notion in testing which sees instruction and assessment as inextricably mingled contending that learners will progress if provided with dynamic interactions. The main purpose of the study is to see if the scores generated by the computerized dynamic assessment (C-DA) which is grounded in Vygotsky's…

This study examines math and English standardized test score progress of students who participated in the 21st century program across 2 years of involvement with a focus on the learning trajectories of limited English proficiency (LEP) students. We find that math and English scores are highly associated with the school and program type--even…

This paper investigates the differences in academic achievement trajectories from elementary through middle school among English Learner students in four different instructional programs: English Immersion, Transitional Bilingual, Developmental Bilingual, and Dual Immersion programs. Comparing students with the same parental preferences but who…

The social nature of language learning and development has been widely acknowledged, as has the importance of family relationships in language learning processes. The role that the first language plays in the literacy development of English language learners (ELLs) and their families is irrefutable. Advocates of family literacy programs have…