Five cohorts of students (N = 322) who completed a K-5 Spanish Dual Language Immersion (DLI) program in an urban school district were followed longitudinally through middle and high school completion. Academic and language achievement data included English Language Arts and Mathematics scores on the Standardized Testing and Reporting (STAR) test…

Seven cohorts of students (N = 258) who completed a K-5 Spanish Immersion (SI) program in a suburban California school district were followed longitudinally through middle and high school to understand their academic, language, and social emotional outcomes. Academic and language outcomes included Spanish classes and grades, standardized Math and…

Purpose: This study examines the expansion of two-way dual language (TWDL) programs in Los Angeles Unified School District from 2000 to 2022, analyzing their growth in relation to neighborhood change, charter school expansion, and enrollment decline. We use a novel data set combining program founding years, school-level enrollments, and…

This study explored the initial stages of adult second language (L2) learning with a special focus on the acquisition of the target language sound system. The aim was to analyze the longitudinal development of Spanish stop voicing contrasts in an immersion learning context. Native English-speaking late learners of Spanish provided production data…

This quantitative, longitudinal matched pairs study determined whether elementary Spanish immersion students performed better on reading end-of-grade exams in Grades 3-5 than their non-immersion traditional peers in the same grades. African American and Hispanic students from two Spanish immersion schools in a suburban North Carolina district were…

Purpose: This longitudinal study investigated the trajectory of Spanish article accuracy in Spanish-English dual language learners (DLLs) from preschool to first grade, addressing the need for longitudinal data on the variability of Spanish grammatical skills in DLLs in English immersion classrooms. Method: Language sample analysis was conducted…

The current study examined cognitive effects of two pathways of second language (L2) acquisition longitudinally in Chinese speakers learning English in an L2-dominant environment. Thirty-nine participants who attended an intensive 10-week English course (L2-instruction group) were compared to 38 participants who attended regular university courses…

It is well-documented that there is a strong relationship between vocabulary and reading comprehension in school-age children. Limited vocabulary knowledge can impact a student's reading achievement, as may be the case for school-age English Learners (ELs). This study aims to analyze the role of vocabulary in predicting reading comprehension…

Models of reading development point to a role for knowledge about the orthography quite late in children's reading development; here we explore the contributions of early orthographic knowledge -- of the features of print -- to word reading development between kindergarten and Grade 1. We did so in a longitudinal study of 93 emergent bilingual…

The authors examine components of pre-trip preparation that influence student trip experiences and learning related to short-term immersion programs. With the use of a transformative learning framework and a multisite longitudinal case study, key components emerged as essential in preparing students for these experiences: community building,…

This work reports, from a qualitative research perspective, the development of an English Corner project for a preschool Children's House classroom in central Mexico over the course of a 3-year period. It shows the transition of a language specialist over six consecutive periods of work, from a traditional understanding and practice of teaching…

Providing English language instruction has important implications for millions of children nationwide. This Statistics in Brief first discusses differences in the student and school characteristics of kindergartners who participated in instructional programs designed to teach English language skills and students who did not participate in such…

This article focuses on the reported experiences of three focal students who participated in a Spanish/English dual language program in their southern California school district throughout their elementary and middle school years. All three students identify as Mexican-origin and speak Spanish, English, and the Indigenous language of Zapoteco and…

However influential the interdependence hypothesis has become in bilingual research, it still lacks full empirical support. This longitudinal study explores the parallels in the biliteracy development (L1 Spanish and L2 English) of 20 students in a European immersion programme (i.e. CLIL) over a two-year period. A bilingual learner corpus of…

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…