High school students' chemistry self-efficacy (CSE) and scientific identity (SI) are not well understood in the high school chemistry classroom. The purpose of this research was to quantitatively investigate the interaction between gender and giftedness on students' CSE and SI in a suburban high school chemistry classroom, with and without…

China, classified as a middle-income country by the World Bank, faces a scarcity of resources in providing autism interventions, despite a comparable autism prevalence in the Western world. Most autism interventions in China are imported from high-income countries, highlighting the need to examine whether the focus of the interventions from mixed…

This dissertation explores the dynamics of undergraduate socialization within a STEM Intervention Program (SIP), specifically the STEM Scholars Program (SSP), with a particular emphasis on comparing the experiences of first-generation and continuing-generation college students. The study employs a longitudinal design and uses random intercept…

Geometry education is an important aspect of STEM education and career development, but it is often overlooked in K-12 education in the United States. Although there is some research on teaching geometry to students with learning difficulties at the elementary level, there is a lack of research on teaching advanced geometry skills at high school…

This dissertation consists of two chapters on topics in economics of education. In the first chapter, I develop and estimate an equilibrium model of endogenous instruction and student effort in order to empirically investigate the relationship between instructional choices, classroom composition, and student achievement in elementary school. The…

The purpose of this study was to understand the possible effects that participation in a culturally relevant reading intervention program had on students' reading growth and reading self-perception, when compared to students who did not participate in the program but demonstrated similar prior academic achievement. To assess the relationship…

A large body of research in Second Language Acquisition (SLA) is dedicated to the effects of individual differences among language learners. One commonly studied factor is self-efficacy, and its related subcomponents of foreign language anxiety and second language (L2) motivation. However, specific pedagogical interventions to either enhance or…

This study investigated the effect of multiple text-graphic interventions to facilitate conceptual change on the topic of human induced climate change. Given the superiority of refutation texts over standard expository texts, the goal of the present study was to determine if this effect could be enhanced, thereby creating an even more powerful…

Early reading literacy is foundational to all other academic learning. It is imperative that elementary students with and without disabilities be provided with evidence-based reading instruction. Elementary students with developmental disabilities (DD) and complex communication needs (CCN) benefit from evidence-based reading instruction that…

Knowledge sharing in work teams is one of the critical team processes. Without sharing of knowledge, work teams and organizations may not be able to fully utilize the diverse knowledge brought into work teams by their members. The purpose of this study was to investigate antecedents and underlying mechanisms influencing the extent to which team…

The development of reading skills from age seven until age 19 was investigated for children who were referred for special education preschool intervention using latent growth curve analysis (n=206). Approximately one-third of the study sample did not require special education services after preschool, providing a natural comparison group. Reading…

Fluency has been identified as an important component of effective reading instruction, and repeated reading has been shown to improve oral reading fluency. In order to improve the efficiency of repeated reading interventions, more research is needed on the effectiveness of small group reading interventions. An alternating treatments, single…

This descriptive qualitative case study explored the changing role of the reading specialist through various perceptions of professionals in the Neon Shadow School District. The purpose of the study was to explore what, how, and why the duties and responsibilities of the reading specialist have changed since first employed as an…

There is a national shortage of school-based Speech Language Pathologists (SLP). Schools located in rural and geographically remote areas are often impacted by the shortage, and as a result students with an autism spectrum disorder may not receive services that are mandated by their Individual Education Plan. This study examined the use of…

The purpose of this qualitative case study was to examine today's academic acceleration from the lived experience and perspectives of two young adults whose education was shortened, thereby allowing them the gift of time. Through personal interviews, parent interviews, and physical artifacts, the researcher gained a complex, holistic understanding…