This study reveals hitherto overlooked effects of age of onset (AO) in immersive school contexts, using multiple measures over time so as to focus on fluctuations and trends in individual data. The second language (L2) English development was studied in 91 children who received 50-50 content and language integrated learning (CLIL) instruction in…

Whilst the links between learner corpus research (LCR) and Second Language Acquisition (SLA) have long been debated, McEnery et al. (2019. "Corpus Linguistics, Learner Corpora, and SLA: Employing Technology to Analyze Language Use." Annual Review of Applied Linguistics 39: 74-92. doi:10.1017/S0267190519000096) claim that learner corpus…

The assessment of dual language immersion (DLI) students' proficiency in the partner language plays a key role in program evaluation. This article reports findings from a large-scale study, drawing on cross-sectional assessment data from 73 schools and longitudinal data from 25 schools. Students were tested in the interpretive (listening and…

Schools in Ireland vary in how they introduce reading in the two official languages, Irish and English. There is particular variability within immersion (Irish medium) schools. Some introduce Irish reading first (IRF) and others English reading first (ERF). This study compared the development of Irish and English skills in children attending…

The aim of this paper is to analyse some aspects of development of Basque as a second language (L2) in children for whom Spanish is their first language (L1) who attended immersion school in Basque in a Spanish-speaking sociolinguistic context. Data consist of oral story retellings produced in a classroom setting where the same children…

We describe research results and lessons learned from a laboratory/ classroom collaboration with a school system offering both traditional English-only education and a dual-language track (Spanish/English). Through this collaboration, we addressed basic research questions informing malleable factors that impact cognitive development. In a…

Although immersion programs are very popular in Canada, they are complex to implement and not as successful as we would hope them to be when it comes to the development of students' language skills. This article reports on the findings of a case study conducted within the context of an ongoing five-year grant funded project in Western Canada whose…

There are many untested, long-held assumptions within the field of study abroad concerning the impact of program elements such as study duration, language of instruction, program models, and student housing choices. One assumption embraced within the field is that direct enrollment (or full immersion) programs are more effective at achieving a…

This paper reports on a questionnaire survey carried out in the first and last classes of a single semester English "conversation" class at a national university in Japan. While the time frame is obviously limited, the project focuses on changes in attitude to using the Learners' Mother Tongue displayed by students with regards to use by…

A study assessed and compared the effectiveness of two distinct approaches of bilingual education used within a single school district in El Paso (Texas). The program designs, one a traditional transitional bilingual and the other a bilingual immersion, were implemented under similar conditions of resources, school year length, class size, and…

This study examines how instruction in the first language (L1), Chinese, and in the second language (L2), English, affects a large sample of students' academic achievement in L1, L2, and content, nonlanguage school subjects, including mathematics, science, geography, and history, in their first 3 years of high school. For all four content area…

Presents a longitudinal examination of the effects of certain types of schooling (bilingual, immersion, mixed-language) on the concept development of monolingual, developing bilingual, or competent bilingual children in Wales. Results indicated that immersion programs temporarily retarded concept development of second language beginners.…

The Hawaiian Language Immersion program (HLI) is described and evaluated. HLI began in 1987 with two small classes on two islands and within 6 years had grown, in response to parent interest, to serve 621 students in grades K-7 in 6 schools on 5 islands. Participating students are taught entirely in Hawaiian until grade 5; in grades 5 and 6 one…