The first goal of this study was to examine how individual differences in initial L2 proficiency help explain L2 grammar development in oral production during short-term immersion abroad. The second goal of the study was methodological, and evaluated challenges that can result from operationalizing learners' initial L2 proficiency as pretest…

Languages differ in their realization of the subject argument: non-null-subject languages, like English, require subjects to be phonologically overt; rather, null-subject languages, like Greek, allow the subject to be overt or null. This cross-linguistic difference can lead to the transfer of grammatical properties across languages during…

This study explores the relationship of early immersion education, socioeconomic background, and cognitive gains of young learners. We examine the possible advantages of early bilingual education and the impact of family socioeconomic status (SES) for the cognitive development of children. Participants (N = 39) were students at regular (German) or…

This paper provides an empirical study of word formation and lexical expansion in a set of Algonquian languages, considering 153 terms for each language. These terms range from words that predate European colonialism to more recent forms coined by English L1 speakers. We propose a classification of the methods of lexical innovation, which involves…

The Spanish verbal system offers more evidence for agreement and tense than English, where morphological evidence is less robust. With a focus on the comprehension of verbal agreement morphology by child second (L2) learners of Spanish and English, we extend the Variational Learning account to L2 acquisition to investigate whether the abundance of…

The present dissertation brings together research on heritage language acquisition and bilingual education and makes inroads into the limited research on heritage language development in school-aged bilingual children. This study explores how bilingual education, patterns of exposure, and lexical frequency shape adolescent Spanish heritage…

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…

Purpose: There is limited research on the writing of young Spanish-English bilinguals and their writing in both languages. In the current study, we addressed whether written syntax features differed by language (English and Spanish) and varied as a function of grade level, English learner status, and instructional program (dual or English…

Purpose: There is limited research on the writing of young Spanish-English bilinguals and their writing in both languages. In the current study, we addressed whether written syntax features differed by language (English and Spanish) and varied as a function of grade level, English learner status, and instructional program (dual or English…

Guided by Dynamic Systems Theory (DST) and multidimensional perspectives on individual differences (IDs) in instructed second language (L2) learning (e.g., Larsen-Freeman, 2014; Sun & Zhang, 2020), this longitudinal mixed-methods study focuses on three conceptually different categories of L2 learners' IDs: working memory (WM), motivation, and…

This exploratory study evaluated the impact of a Spanish second language (L2) domestic immersion (DI) program that was developed expediently at a large university in the United States in response to widespread study abroad (SA) program closures due to COVID-19. Spanish language learners (n = 14) participated in an intensive, six-week summer…

Due to the relevance of the discussions on the use of counterbalance for content-based and form-focused second language instruction, the purpose of this study is to present some pedagogical strategies to teach and reinforce the correct use of articles, gender and number of nouns in Portuguese when teaching Language and Arts (first grade) and…

Purpose: This exploratory study investigates the development of oral narrative retell proficiency among Spanish-English emergent bilingual children longitudinally from kindergarten to second grade in Spanish and English as they learned literacy in the 2 languages concurrently. Method: Oral narrative retell assessments were conducted with children…

Immersion students' language abilities are generally characterized by strong receptive skills (listening, reading) and less developed productive skills (speaking, writing) when compared with L1 speakers of the immersion language (e.g., Allen et al. 1990; Cummins 1998; Harley 1992). In this paper we report results from a six-month mixed-methods…

3D virtual worlds are promising for immersive learning in English as a Foreign Language (EFL). Unlike English as a Second Language (ESL), EFL typically takes place in the learners' home countries, and the potential of the language is limited by geography. Although learning contexts where English is spoken is important, in most EFL courses at the…