Nonnative English speakers are often judged based on their accent, but accent is perceived as well as produced. Race, gender, and religion interact to create complex and nuanced figures of personhood (Agha, 2005) impacting teachers' perceptions of students. Teachers' individual differences, including language proficiency, exposure to language, and…

This dissertation centers on the study of Kaqchikel word associations and the social variation that exists within them. Theoretical and methodological considerations for this project stem from the fields of psycholinguistics, variationist sociolinguistics, and cognitive linguistics. Together, these form an approach that fits within a blossoming…

In an increasingly complex world, it is imperative that undergraduate science courses prepare students to make confident, informed decisions and predictions. The research presented in this thesis focuses on supporting students to engage in mechanistic reasoning (MR) about phenomena in chemistry and biology (that is, thinking about how and why…

This dissertation explores Spanish copular verbs, "ser" and "estar" (both 'to be' in English), in pre-adjectival contexts within two Spanish varieties: first-language (L1) Chilean speakers from Santiago (N = 29) and second-language (L2) English-speaking learners studying in Chile (N = 31). Bridging sociolinguistics and second…

Labs have long been considered an important component of physics education. However, while there has been progress in transforming physics education in physics lecture classes to improve student learning, less progress has been made in introductory physics labs. At the same time, the physics community has come to recognize that there is a need to…

Requiring teachers to complete a performance-based assessment in the form of a teacher performance assessment is becoming a common way for initial teacher licensure or advancing a license. While some traditionally- and alternatively-licensed teachers from all content areas may have to complete some type of performance-based assessment for initial…

This dissertation examines linguistic spatial frame of reference (FoR) usage across three cohorts, detailing the lexical and structural realization of particular spatial FoR classes within each linguistic community, as well as which linguistic and nonlinguistic factors are predictors of spatial FoR class usage. This study was designed to determine…

This study employed Bachman and Palmer's (2010) Assessment Use Argument framework to investigate to what extent the use of a second language oral test as an exit test in a Hong Kong university can be justified. It also aimed to help test developers of this oral test identify the most critical areas in the current test design that might need…

Women in the U.S. and all over the world are more vulnerable to HIV/AIDS because of both behavioral and contextual factors. HIV/AIDS prevention education on government health websites plays an important role in reducing this health inequality for women. However, contrary to the assumption of Rimal and Real's (2003) Risk Perception Attitude…

The purpose of this study was to describe students' attempts to solve nonroutine math problems and to explore possible correlates of their performance. The focus of this study was on inattended (i.e., intentionally avoided) dimensions that have been underrepresented in the literature, including attitudes, interests, values, aesthetics,…

This study focused on the relationship between the principal's sense of self efficacy and the faculty's sense of collective efficacy in independent schools in the metropolitan area of Washington, D.C. Principals and teachers from sixteen private schools participated by completing surveys on efficacy. Principals completed the Principal…

Phonological awareness (PA) is the ability to analyze spoken language into its component sounds and to manipulate these smaller units. Literature review related to PA shows that a variety of factor groups play a role in PA in Mandarin such as linguistic experience (spoken language, alphabetic literacy, and second language learning), item type,…

Performance assessments have become the norm for evaluating language learners' writing abilities in international examinations of English proficiency. Two aspects of these assessments are usually systematically varied: test takers respond to different prompts, and their responses are read by different raters. This raises the possibility of undue…

The test scores of spatial ability for women lag behind those of men in many spatial tests. On the Mental Rotations Test (MRT), a significant gender gap has existed for over 20 years and continues to exist. High spatial ability has been linked to efficiencies in typical computing tasks including Web and database searching, text editing, and…