Accurately identifying developmental language disorder (DLD) in students who speak a home language other than English has proven to be an enduring challenge. Consequently, students with DLD miss out on critical interventions, and those who are acquiring their two languages in a typical manner are placed in settings that do not meet their…

The present dissertation intends to investigate the syntactic nature and L2-acquisition of passive sentence structure in two Romance varieties, Italian and Spanish. First, I will present an analytic proposal couched within the Generative Approach (Chomsky, 1957, and subsequent work); from there, and following Perlmutter and Postal's (1977)…

Students must have a working understanding of the language of instruction to be successful in school. In the United States, English is the predominant language of instruction, and students who come from homes where a language other than English is spoken face the additional challenge of learning both subject matter content and the dominant…

Gestures and other bodily movements are frequently used as instructional strategies in second language classrooms. Research has demonstrated that gestures are an effective strategy to improve L2 vocabulary recall. However, previous studies have only used vocabulary items that are known to participants in their native languages. Additionally,…

Automated assessment using Natural Language Processing (NLP) has the potential to make English speaking assessments more reliable, authentic, and accessible. Yet without careful examination, NLP may exacerbate social prejudices based on gender or native language (L1). Current NLP-based assessments are prone to such biases, yet research and…

This study investigated English phonological awareness in adult native speakers of English (L1) and in relation to their phonological awareness skills and proficiency in their German (L2). Most research in L1 phonological awareness focuses on younger children, their phonological awareness development, the relationship between reading and…

Growing up in the digital era, young children are exposed to numerous educational applications and programs, some with well-designed curricula and others focused more on entertainment or game-like qualities. With the increasing popularity of mobile language-learning applications among young children, this dissertation raises a crucial question: do…

Years of teaching experience have long been taken as an important indicator of teacher and school quality in primary and secondary schools. However, research on the effects of teacher years of experience on student outcomes has shown mixed results. To investigate the source of variation causing these mixed results, this study examined a broad…

Language placement test serve with multiple purposes to measure the language abilities and performance of language learners to place them in the most appropriate language course with curriculum that best meets the language needs. There is the need to assess appropriately the Spanish heritage language learners' (SHLLs) abilities at the high-school…

Millions of public-school students in the United States are identified as English language learners (ELLs), whose academic success is tied to their second language (L2) English education. Previous research in adult populations indicates that L2 proficiency is related to the contextual variable of the prevalence of one's first language (L1) among…

The purpose of the current dissertation is to map the relationships between first language (L1), writing quality, and syntactic complexity, accuracy, lexical complexity, and fluency (CALF) in second language (L2) writing. CALF are characteristics of language production that have been of significant interest in L2 writing research for the past few…

This study examined the effects of three subtitle conditions on English vocabulary learning, form recognition and meaning recall, from TED Talks videos while controlling for vocabulary size and initial knowledge of the target words. The participants, 105 Libyan students (16 males and 89 females) at intermediate English proficiency level, were…

Language is inherently variable, and learner language is particularly variable. The variationist paradigm considers learner language a heterogeneously variable yet inherently rule-governed system. Specifically, learners' alternation between native-like and nonnative-like variants of a variable or invariable target native speaker (NS) form…

Many studies evidence the flexibility of speech perception in the first language (L1), which allows rapid adaptation to unfamiliar foreign accents. Two influential studies by Bradlow and Bent (2008) and a follow-up study by Baese-Berk et al. (2013) found that increased variability as a function of the number of talkers and accents facilitated the…

This exploratory research study analyzed the relationships between attitude, preference, and achievement of English Language Learner (ELL) students in high school from Brazil. The study presented what relationships exist between attitude, preference and achievement in reading for both L1 Portuguese, and L2 English. The Middle and Secondary Reading…