Research into second language acquisition (SLA) has shown that individual difference (ID) variables can be strong predictors of language achievement (e.g., Dornyei, 2003; Skehan, 2003). Traditionally, this research conceptualized ID variables as static and monolithic variables (e.g., Dornyei, 2010). More recently scholars have questioned this…

This mixed-methods study aimed to examine how the quality of interactions between a paraprofessional and a preschooler during playtime impacts students' language development. The data collected and analyzed included in-depth classroom observations and interviews with paraprofessionals. Data measured the paraprofessional's actions, trends,…

The United States government is perennially in need of employees with proficiency in critical foreign languages to communicate with foreign counterparts and maintain relationships worldwide. In order to fulfill this need, the government devotes significant resources training federal employees to advanced levels of language proficiency through…

The cybersecurity landscape in the United States has rapidly evolved, marked by risk and novel threats (Georgescu, 2021; Siraj et al., 2021). Today, security mindsets are "widely accepted in the computer security community as … essential … for successful cybersecurity practice" (Peterson, 2021, para. 1), valuable to aspiring…

International schools, which are often rich with linguistic diversity, typically promote that proficiency in an accepted standard variety of English is the desired and favored outcome for students (Hayden & Thompson, 2016; Spiers, 2016). These schools, in part due to the teachers they employ, could be characterized as systems that promote…

Embodied models of language comprehension assume that words become associated with sensorimotor experiences during word learning. Novel word learning paradigms may provide insight into embodied effects, but studies in this domain have yet to account for how concepts and information known in first language (L1) might influence the sensorimotor…

"How can teachers help students improve their second language (L2) speaking accuracy?" This is a question that most L2 educators ask themselves every day. Although L2 writing is a popular topic among Second Language Acquisition (SLA) researchers, the consideration that L2 writing has the potential to act as a scaffold for L2 speaking…

Research suggests that mathematics achievement is associated with future socioeconomic success and opens the possibility of social mobility for many individuals. However, disparities in mathematics achievement indicators expose inequitable opportunities and inconsistent access to appropriate educational models for a broad range of students. This…

This dissertation investigates the intricate relationships among global competence, cultural identity, and English learning motivation within the context of undergraduates in Southern China through a mixed-methods research design. Given the backdrop of accelerating globalization, this study underscores students' need to develop robust global…

This quantitative study examined teachers' self-efficacy in teaching multilingual learners (MLL) and implementing the Sheltered Instruction Observation Protocol (SIOP) to support MLL instruction in classrooms. The problem is that teachers' self-efficacy when teaching MLLs may affect them not utilizing the best research-based Tier 1 instructional…

The desire of higher-ed leadership to internationalize programs to attract foreign students may not align with the perspectives of educators in the classroom. In the elementary and secondary school settings, a teacher's perspective can impact culturally and linguistically diverse (CLD) student achievement. However, the current literature does not…

Research suggests that the language in which we speak, listen, and read may affect how we understand and interact with our environment. Part of this interaction includes understanding affective communication. Recently, more research has explored the area of bilingualism and emotion. The way in which language interacts with thought and emotion…

This three-manuscript dissertation attempts to answer the question: "How does students' English language proficiency (ELP) inform the availability, structure, and use of English language accommodations and intervention to support the academic achievement of English learner (EL) students?" The question is addressed using three independent…

This study investigates ESL teachers' attitudes toward online language teaching and technology integration. Initially focused on Texas, where ESL populations are significant, the research was later expanded nationwide to capture diverse perspectives. The study draws on the Three-Tier Use Model (3-TUM) developed by S. S. Liaw (2008) to explore…

This mixed methods study draws upon theoretical perspectives from usage-based linguistics (UBL) and variationist sociolinguistics to explore four learners' use of second language (L2) Spanish present tense indicative verbal inflectional morphology (i.e., simple present conjugations). The study compares the frequency and distribution of students'…