This book gives an overview of the linguistic development of Korean-English bilingual children living in the US. It provides a detailed longitudinal account of English and Korean acquisition in early childhood, offering a close examination of Korean-American children's code-switching and morphology and syntax development during a time when their…

This volume presents state-of-the-art research in early foreign language (L2) education in instructed contexts with a special focus on primary school (ages 5-12). Over the past two decades, early language teaching has become an important factor in both academic inquiry and education policy. Studies have attested to the value of early L2 learning…

This edited volume offers critical reflections on an essential component of research method in the field of second language acquisition -- data. Scholars working on diverse areas (e.g., pragmatics, corrective feedback, phonology) and approaches (e.g., corpus linguistics, concept-oriented analyses, variationism) have come together to identify…

This volume sheds empirical light on Complex Dynamic Systems Theory (CDST) by providing five sets of analyses of two longitudinal, interactional datasets, involving two dyads exchanging emails over one academic semester. The collective study on CDST is the first of its kind, in that it delves into multiple subsystems of learner language,…

California currently faces an opportunity to develop an effective data system that can assist in improving the state's future understanding of the educational progress of English learners (ELs). This policy brief outlines the needs for good data on ELs and makes recommendations for creating an effective longitudinal data system for ELs. It…

This article critically explores the value of ethnography for enhancing context-sensitive approaches to the study of academic writing. Drawing on data from two longitudinal studies, student writing in the United Kingdom and professional academic writing in Hungary, Slovakia, Spain, and Portugal, the author illustrates the different contributions…