Guided by both the interactionist and sociocultural learning theories, this study investigates the interactive communications in text-based synchronous computer-mediated communication (SCMC) and face-to-face (FTF) oral communication environments and the impacts they bring to subsequent L2 Chinese speaking. Learners' perspectives on using…

Since Swain's (1985) Output Hypothesis, producing output in second language (L2) has been assumed to be a crucial cognitive process that promotes L2 acquisition, by actively facilitating various cognitive processes (e.g., noticing, hypothesis testing, conscious reflections of own language use, and automatization of the linguistic knowledge) (de…

This dissertation provides an in-depth linguistic description and analysis of the discourse in a target domain of digital games, a domain referred to as "single player offline role-playing games." Gaming discourse from this domain is represented by a 4.8-million-word corpus of spoken and written language extracted from the digital files…

The ability to speak in a second language (L2) requires a certain level of linguistic proficiency, but the ability to "live" in a second language requires a certain level of "sociolinguistic" proficiency. L2 sociolinguistic variables present acquisitional challenges for language learners, since informal discourse features are…

Task-based language teaching and interaction are facilitative contexts for instructed second language acquisition and include abundant opportunities for learners to receive authentic input, engage in negotiation for meaning and pushed output, and to receive feedback and direct attention to linguistic features (Goo, 2019, p. 247). Individual…

The field of Heritage Language has experienced a great deal of advancement in the past few decades. Much research effort has been dedicated to analyzing and understanding different aspects of heritage language speakers, but less work has been done in the topic of pedagogical approaches. The few recent studies on pedagogical approaches have focused…

According to Diane August (2002), at the Center for Applied Linguistics, Multilingual Learners (MLs) spend less than two percent of their school day in oral language development. Echevarria and Goldenberg (2017) support that creating numerous opportunities for ML students to speak will accelerate their vocabulary and oral language development to…

Second language (L2) learners often have difficulty perceiving L2 sound contrasts when the first-language (L1) and L2 sounds are acoustically similar and these similar L2 sounds correspond to an existing L1 sound (Flege, 1995). To improve L2 learners' perception of sound contrasts, researchers have used high-variability phonetic training (HVPT)…

Foreign language placement testing, an important component in university foreign language programs, has received considerable, but not copious, attention over the years in second language (L2) testing research (Norris, 2004), and it has been mostly concentrated on L2 English. In contrast to validation research on L2 English placement testing, the…

Usage-based theories of language development underscore the importance of children using language to learn language. Few investigations have applied usage-based theories to dual language learners (DLLs), who comprise a growing share of children attending early education programs in the U.S. Three studies were carried out to investigate the role of…

This dissertation examines heritage language learners of Spanish enrolled in university Spanish courses, focusing on their strategic use of suprasegmental speech features in two speaking tasks. The research investigates attitudes' influence on heritage language learners' speech production in different task types. Participants engaged in two…

Oral language is foundational to literacy. Because their language is under construction, emergent bilingual students have unique needs related to literacy development regardless of the language of instruction. Knowledge teachers gain through formative assessment of student oral language can guide decisions about literacy instruction. The purpose…

The Systematic Literature Review (SLR) compiled and synthesized information to assist in building a well-rounded English Language program. The SLR used 190 articles to articulate the importance of creating a positive learning environment while teaching differentiated lessons. The collaboration between the mainstream teacher and the ELL specialist…

The present study contributes to our understanding of the effects of age and type of linguistic input in the acquisition of Spanish as a second language in adulthood. I examine the Spanish syntax (word order) of three groups of speakers, monolingual Spanish speakers from Mexico and two bilingual English-Spanish speakers born and raised in the…

Interaction has received attention in different fields of applied linguistics. In the field of Second Language Acquisition (SLA), scholars have perceived interaction as a platform where L2 learners can engage in language experimentation. It has been considered in light of Long's (1981) Interaction Hypothesis, which posits that negotiation of…