Most of the world's languages include multiple varieties and dialects. Individual ability to successfully alternate between these varieties can be a socio-cultural and academic necessity for many bilingual speakers, including children in the US who alternate between African American English (AAE) and Mainstream American English (MAE). This…

This dissertation delves into second language acquisition, sociophonetic variation, and speech perception, investigating how prior linguistic experiences and exposure to regional variations in a second language influence the decoding of dialectal linguistic cues. It aims to enhance the understanding of words pronounced with different phones and…

This study investigates the role of prosody in narration as a function of Labovian narrative structure and stancetaking in identity performance. This study is both an extension and enhancement of preliminary work that looked at a handful of prosodic features in Mexican Spanish narratives, and a novel investigation into discursive acts expressed…

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…

The potential of speech technology to improve educational outcomes has been a topic of great interest in recent years. For example, automatic speech recognition (ASR) systems could be employed to provide kindergarten-aged children with real-time feedback on their literacy and pronunciation as they practice reading aloud. Within these systems,…

The efficacy of the "integrated approach," which calls for the simultaneous integration of two varieties in teaching Arabic as a second language (L2), has not yet been rigorously examined, and the very few available studies suffer from many methodological limitations. The current study sought to bridge this gap in the literature by…

This dissertation explores the relationship between quantitative phonetic measurements and listener identification of accents of English, focusing on phonetic distance and its perceptual correlates across various English accent varieties. The Levenshtein distance (LD) measure, which quantifies string similarity by calculating the minimum cost of…

This dissertation examines native speakers' word recognition of, differentiation between, and social attitudes toward varieties of Arabic. It is a particularly interesting test case because of the Arabic unique regional variation situation and the available literature lacks data on how Arabic speakers perceive different accents, with a particular…

The purpose of this dissertation is to examine the perception of unstressed vowel reduction (UVR)--also known as vowel devoicing--in Central Mexican Spanish. UVR is a variable, gradient process in which vowels undergo a constellation of phonetic weakening processes including shortening, devoicing, and apparent deletion (Gordon 1998). While it is…

Perception of second language (L2) speakers and their speech is known to be influenced both by phonetic and by sociolinguistic factors. The existing body of scholarly research on L2 speech perception, however, is overwhelmingly focused on Indo-European languages, raising doubts about the generalizability of existing sociolinguistic, phonetic,…

The aim of this dissertation is to investigate how a critical understanding of language use, language ideologies, and linguicism can influence educators' praxis and identities. Specifically, the research explores how Critical Language Awareness (CLA) impacts educators' praxis, their lingua-cultural identities, and their relationships with language…

This dissertation investigates whether social identity information modulates the interpretation of non-entailed clausal complement content (CC) in utterances of sentences such as (1): (1) Ken didn't hear that the minimum wage is too high. The focus of this dissertation is the listener 's inference that the speaker is committed to the truth of the…

Understanding speech in an accent or dialect different than one's own can be challenging. McLaughlin and Van Engen (2020) were the first to quantify this increase in listening effort using Task Evoked Pupillary Response (TEPR), a common measure of cognitive arousal. They found that monolingual, English speaking adults' pupils dilated more quickly…

There is a growing body of research from various perspectives in heritage language (henceforth HL) acquisition as an emerging field. Some studies proposed that HL acquisition is a differential acquisition compared with the baseline language (i.e., the language spoken by the parents or caregivers) (Kupisch & Rothman, 2018; Dubiel &…

This study investigates the simplifications used with English consonant clusters by EFL learners of Saudi Najdi Arabic dialect (a dialect spoken in the central region of Saudi Arabia). More particularly, it focused on the Saudi Najdi speakers when they pronounce English final three-consonant clusters such as /lps/ as in "helps." The…