All communication systems rely on sets of rules that must generally be followed for successful communication to be possible; in the case of human language, these rules are given by the grammar. However, despite these rules, there is considerable variation that has been noted across the grammar. In this dissertation, I explore one understudied…

Standard Spanish grammar states that desideratives ("querer que"), directives ("aconsejar que"), purpose clauses ("para que"), causatives ("hacer que"), emotive-factives ("alegrarse de que"), negated epistemics ("no creer que"), dubitatives ("dudar que"), and modals ("ser…

Touted as the future of language teaching, task-based pedagogy is grounded in current Second Language Acquisition (SLA) theories, and is in line with the trend of learner-centeredness in general education. However, the method has yet to be fully embraced by the language teaching community due to the lack of 1) clear delineation of pedagogical…

Formulaic expressions (FEs), such as conventional collocations (e.g., fresh air) and phrases (e.g., take a break), constitute a significant part of language use in our daily lives (Erman & Warren, 2000). FEs are defined as multiword units that holistically represent a single meaning, and they are likely stored and retrieved as unanalyzed…

For many people, learning a second language as an adult is a challenging endeavor. Much interest in the study of adult second language learning has concerned the type of input that learners receive in their second language, with findings suggesting that second language learners are often exposed to a register of speech called 'foreigner talk' that…

Minority languages in diglossic situations with a majority language face the danger of eventual loss of vitality. The first sign of this is when child language acquisition begins to erode. This dissertation investigates the intergenerational transmission of the Isan language, spoken in the Northeastern region of Thailand. While the Isan community…

Learning new languages is a complex task involving both explicit and implicit processes (i.e., that do/do not involve awareness). Understanding how these processes interact is essential to a full account of second language (L2) learning, but accounts vary as to whether explicit processes help (e.g., DeKeyser, 2007), hinder (e.g., Ellis &…

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…

This dissertation investigates how bilinguals use their two grammars to comprehend written intra-sentential codeswitches. I focus on adjective/noun constructions in Spanish and English where I manipulate the congruence of grammatical word order in the two languages across the codeswitch boundary. This allows me to test three codeswitching…

Language can alter our mental conceptions of space, time, and categories. While there is compelling evidence that thought can be shaped by syntactic, morphological, and lexical features of a language, less is known about the impact of phonology on thought. This dissertation uses novel objects (alien cartoon figures) and pseudoword names in three…

Generalization is the ability to apply regularities to novel instances, for example, correctly guessing that the plural for the novel English word 'wug' should be 'wugs'. Early language learners make overgeneralization errors like 'mouses', applying regularities beyond their attested uses. Theories concerned with the question of how learners learn…

The employment of genre-based pedagogy and Task-Based Language Teaching in second language education is representative of a paradigmatic shift towards a focus on meaning-making. Despite this shift, second language acquisition (SLA) research continues to predominantly rely on complexity, accuracy, and fluency metrics to assess learner production…

Scope ambiguity arises when a sentence contains scope-bearing logical operators like quantifiers and negation (Fox, 2003). For instance, in English, the sentence 'Every horse didn't jump over the fence' can be interpreted as either 'None of the horses jumped over the fence' (surface scope) or 'Not all of the horses jumped over the fence' (inverse…

Study 1: The present work examined the connection between language and conceptual development, investigating whether false-belief reasoning (FBR) and source-monitoring ability (SMA) abilities within the theory of mind (ToM) framework constrained the comprehension of semantic and pragmatic knowledge (evidential scalar implicatures) encoded in the…

The present study was focused on acquisition of Chinese relative clauses (RCs) by second language (L2) learners and whether this acquisition was influenced by RC linguistic features, learners' Chinese proficiency levels, and their first language (L1). Data were gathered via a Chinese reading comprehension test, a grammaticality judgment task, a…