The growth of Utah's dual language immersion (DLI) program has led to situations where student and mentor teachers teach in settings far different from their home countries' schools, while supervisors observe lessons in unfamiliar languages. This study examined critical incidents in a cross-cultural student teaching experience consisting of a…

The purpose of this study is to investigate challenges and tensions encountered by university supervisors working with student teachers in dual language immersion (DLI) settings. Despite the growth of Utah's statewide DLI program, Utah university teacher programs have few faculty members familiar with the partner cultures and languages of Utah's…

The amount of language input bilingual children receive influences their language acquisition. This three-year quasi-longitudinal study determined the extent home language input influences measures of expressive and receptive English vocabulary among Spanish-English school-age bilingual children. The study also determined whether a relationship…

The rising demand for dual-language immersion (DLI) programs, which offer core instruction in two languages from early grades onward, has raised questions about program design and access. We leverage the rapid expansion of DLI schools across the U.S. state of Utah to estimate effects of DLI program availability on the academic achievement of…

The purpose of this study is to examine the professional development (PD) needs of Chinese dual language immersion program (DLI) educators, particularly the PD supports these teachers receive. This instrumental case study examined the professional learning of four Chinese language DLI teachers through semi-structured interviews and observations of…

Providing instruction in multiple languages has the potential to simultaneously help both native English speakers and English learners to develop language proficiency. "Dual language programs" can help native English speakers develop proficiency in a second language and English learners develop proficiency in both their native language…

Providing instruction in multiple languages has the potential to simultaneously help both native English speakers and English learners to develop language proficiency. "Dual language programs" can help native English speakers develop proficiency in a second language and English learners develop proficiency in both their native language…

This study explored the development of oral narrative retell proficiency among Mandarin Chinese-English dual language immersion (DLI) learners in Utah. The study compared the younger and the older DLI learners' oral narrative retelling production in order to provide information regarding the Mandarin narrative developmental trend of the DLI…

A growing body of research has demonstrated that neoliberal discourses have negatively impacted dual language bilingual education (DLBE) for students designated as English learners. This study uses the concept of expropriation to refer to the co-opting and dispossessing of educational resources, opportunities, and rights from language-minoritized…

Using the 2.4-million-word written Spanish subsection of the Corpus of Utah Dual Language Immersion, collected from a large-scale standardized writing assessment of K-12 Spanish second language (L2) students, this study focuses on lexical complexity as operationalized by three measures: lexical diversity, lexical density, and lexical…

This appendix provides additional characteristics of the studies of "Class-Wide Function-Related Intervention Teams (CW-FIT)" that meet What Works Clearinghouse (WWC) single-case design standards, including six studies that contribute to the findings in the "CW-FIT" intervention report and six studies that do not contribute to…