This mixed methods descriptive case study explored the perceptions of 162 leaders and French immersion (FI) teachers related to their roles and responsibilities for the target-language proficiency (TLP) of FI teachers in an urban school division. To date, no research has explored leaders' and FI teachers' knowledge and understanding of the system…

The purpose of this study is to explore the statistical nature of the linguistic interdependence hypothesis (Cummins, 1976, 2017) in the spring of 2nd grade of students in foreign language immersion programs. Specifically, the interdependent relationship between L2 language proficiency levels and L1 reading academic performance in an environment…

Indigenous-language immersion (ILI) is a form of schooling where all, or nearly all, classroom instruction in every subject area is conducted in an Indigenous language. This dissertation comprises three case study comparisons of neighboring pairs of ILI and English-medium school programs. The first case study examines two elementary schools in the…

This dissertation focused on comparing the academic achievement and language proficiency in both English and Spanish of students at risk for language and learning difficulties, with bilingual typically developing students in two bilingual educational contexts: English as a Second Language program and Spanish two-way immersion program. Data was…

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…

Despite the growing societal demand for multilingual graduates prepared to engage in local and global contexts, programs to meet these demands are scarce, especially in K-8 contexts. When schools do seek to implement programs, stakeholders struggle to choose from the established models because research documenting desired outcomes is lacking.…

Dual language and immersion (DLI) instruction at the secondary level is a particular challenge, as teachers are tasked with teaching abstract, cognitively complex content while supporting students in continuing to develop their partner language proficiency. This content and language integration requires a unique skill set and knowledge base, but…

The price of not being English proficient in the United States is costly. A study using 2000 census data showed that people who were not English proficient experienced lower earnings than those who spoke only English (Community and Regional Development Estate, 2005). The cost of being a non-proficient English speaker has the potential to decrease…

Adult learners often have difficulty reaching high proficiency levels in a foreign language, and curriculum experts are on a constant quest for innovative practices in foreign language learning. The problem addressed by this study was that even with the implementation of different pedagogical approaches, including immersion and technology…

This three-article dissertation examined how policy choices in three key policy areas -- initial enrollment, service provision, and reclassification -- impact English learner (EL)-classified students. The first article examined the national landscape of state statutes, regulations, and state education agencies' (SEA) guidance that support…

Students learning to read in more than one language, or emerging biliterates, are becoming increasingly common in schools. Early screening and identification of reading difficulties may lead to better outcomes for emerging biliterates as well as monolingual English students. Oral reading fluency (ORF) is one tool shown to be both a reliable…

To keep the United States economically competitive in a rapidly changing world, business leaders are calling for employment candidates who can work efficiently in a globalized context with both language skills and cross-cultural dispositions critical to the economic success of the country. These language proficiency skills and cross-cultural…

There have been sweeping changes in foreign language education in the United States. As the world is experiencing unprecedented globalization, knowledge of a foreign language and familiarity with other cultures have become increasingly important. Public schools are now implementing dual immersion programs to better prepare students for the…

Researchers have estimated that by 2030, two of every five American public school students will be acquiring English as second language learners (Shah & Cavanagh, 2012). Providing adequate means by which ELLs can obtain both English language and academic proficiency will be paramount if they are to be successful, contributing members of their…

Increased interest by political leaders and parents in educating linguistically competent U.S. students to compete in the global society has emphasized the need for early foreign language learning for all students. Language education researchers have identified core elements of sustainable long-term successful programs that begin in elementary…