This dissertation examined two phonological and morphological changes in Ghamdi Arabic (GA), focusing on vowel harmony and gender distinctions. By comparing Prochazka's 1988 findings with recent data from 26 participants across two age groups. Participants consisted of 20 younger speakers (10 males and 10 females, ages 20 to 35) and six older…

This dissertation interrogates the representation of syntactic locality constraints, specifically intervention locality, within child grammar. Our focal point is the Intervention Hypothesis, which suggests that children are governed by a strict version of featural Relativized Minimality, leading to comprehension difficulties when partial featural…

This research examined how linguistic differences between African American English (AAE) and Mainstream American English (MAE) impact how children process sentences and learn new information. The central hypothesis of this dissertation is that these linguistic differences adversely impact how AAE-speaking children use contrastive inflectional verb…

The current study investigates the expression of progressive and habitual aspect in second language Spanish, integrating theoretical insights from usage-based and concept-oriented approaches to second language acquisition, along with quantitative sociolinguistic methods. To address the full breadth of forms involved, the study examines variation…

This dissertation investigates how parametric variation of linguistic properties leads to similarities and differences in language processing across the levels of words, grammatical features, and sentences. For a truly generalizable theory of psycholinguistics, the languages surveyed should not be constrained to English (Garnham, 1994; Norcliffe…

The primary goal of this dissertation is to contribute to a predictive model of Spanish heritage grammars by applying recent advancements in machine learning to ferret out factors and covariates that give rise to the Spanish subjunctive. Given that "[p]redictive models would entail that we have a far better understanding of the various…

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'…

Mandarin Chinese verbs are composed of one to four characters that function together as a conceptual unit. However, in modern spoken Chinese, most of these verbs are two-character compounds. This dissertation is focused on adult second language (L2) learners' acquisition of these two-character verb compounds. Specifically, the acquisition of a…

Adult first language (L1) English speakers who are advanced second language (L2) learners of Spanish demonstrate near-ceiling levels of accuracy for some features of Spanish, such as [Person] and [Number] for verbs (McCarthy, 2012; Rodgers, 2011). While for other features, such as [Aspect] for copulas (i.e. ser and estar), and [Person] and…

This dissertation explores aspects of Me'phaa morphosyntax, from verb roots to verb-initial word orders. I argue that patterns of agreement map directly onto the syntax of argument structure, which in turn feed the language's unique manifestation of ergativity. Me'phaa agreement morphology is richly complex, and I show that this is due, in part,…

The second language (L2) acquisition of tense, aspect, and mood/modality (TAM) has been widely explored as it holds the promise of a better understanding of the L2 learners' linguistic competences, particularly semantically and morpho-syntactically. This study focuses on the acquisition of the subjunctive mood by L1 English learners of L2 French…

The representational product of sentence comprehension is the result of the interplay between episodic and semantic memory and our knowledge of the grammatical devices of our language which guide how we retrieve information from these systems. Past participles, being a part of speech derived from verbs but used in a prenominal position (e.g. words…

This dissertation provides a formal and functional analysis of grammatical voice in Sasak, an Austronesian language spoken in Eastern Indonesia. The research addresses two primary questions, which are (1) how does Sasak clause structure and morphosyntax vary across dialects? and (2) what shapes speakers' syntactic production, namely grammatical…

From a usage-based approach, this dissertation explores the relationship between structural variability and discourse subjectivity in a series of interviews from the "New Mexico and Southern Colorado Spanish Survey" (Bills and Vigil 2008). Focusing on the use of cognitive and speech verbs, the analysis will demonstrate that a) structural…

Mandarin Chinese and Spanish are both considered aspect languages for the simple reason that they both mark grammatical aspect morphologically: the former attaches a particle expressing only aspectual meaning to the root of a verb, while the latter attaches a suffix expressing both aspectual and tense meaning to the root of a verb. Since tense…