An important consequence of a deeply rooted, mono-cultural rubric for acceptable school participation in the United States has been that African-American students in traditional K-12 math classrooms tend to be labeled as academically "at risk." This qualitative investigation responds to said categorization by examining African-American…

Open science platforms in support of data generation, analysis, and dissemination are becoming indispensible tools for conducting research. These platforms use informatics and information technologies to address significant problems in open science data interoperability, verification & validation, comparison, analysis, post-processing,…

This dissertation uses quantitative and geographic analysis techniques to examine the historical and geographical processes that have shaped California's linguistic diversity. Many questions in California historical linguistics have received diminishing attention in recent years, remaining unanswered despite their continued relevance. The…

Many cognitive scientists regard language as a rich source of evidence about the human mind. Much research over the past forty years has been driven by the assumption that words reveal underlying concepts. At the same time, cross-linguistic work has shown that languages differ dramatically in how they partition the world by name. To maintain the…

The purpose of this study is to understand how teachers make sense of data from a complex set of reading assessments and how inferences they derive from the data affect decisions about instruction. There are two key research questions--1) How does a teacher's developing expertise with a complex set of assessments (assessment literacy) affect…

To meet a growing demand and a projected deficit in the supply of computer professionals (NCWIT, 2009), it is of vital importance to expand students' access to computer science. However, many researchers in the computer science education community unproductively assume that some students lack an innate ability for computer science and…

This dissertation aims to explore how students think about atomic absorption and emission of light in the area of introductory quantum chemistry. In particular, the impact of classical ideas of electron position and energy on student understanding of spectra is studied. The analysis was undertaken to discover how student learning can be…

The purpose of this dissertation is to study students' competencies in generating scientific explanations within the domain of complex systems, an interdisciplinary area in which students tend to have difficulties. While considering students' developing explanations of how complex systems work, I investigate the role of prior knowledge…

This dissertation introduces the construct of "worthwhileness" as an important aspect of students' "practical" epistemologies of science (Sandoval, 2005). Specifically, it examines how students conceptualize what makes a scientific research question worthwhile, through a close analysis of the criteria they use for…

This dissertation explores fifth and eighth grade students' interpretations of three kinds of mathematical representations: number lines, the Cartesian plane, and graphs of linear functions. Two studies were conducted. In Study 1, I administered the paper-and-pencil Linear Representations Assessment (LRA) to examine students'…

Billions of people interact with Web search engines daily and their interactions provide valuable clues about their interests and preferences. While modeling search behavior, such as queries and clicks on results, has been found to be effective for various Web search applications, the effectiveness of the existing approaches are limited by…

"Data modeling" is an approach that helps students to transform initial, and often misguided, understandings of variability and chance to forms of reasoning that coordinate chance with variability by designing learning environments that support this reasoning by allowing students to invent and revise models. The Assessing Data Modeling…

This study examines the impact of the school accountability laws "No Child Left Behind" and Indiana's Public Law 221 on Superintendents' perception of their relationship with the Teachers' Union Leader in their mandatory discussion meetings. Both school accountability laws contain provisions for the Indiana's…

Two critical issues are of great concern in engineering education today: the increasingly broad requirements for 21st-century engineers and the lack of effective instructional approaches needed to produce students who meet the requirements. However, pedagogical approaches in engineering have remained relatively unchanged for the last 40 years and…

Study abroad programs are formal educational courses provided by colleges and universities during which the student receives academic credits while studying in another country. There is a need for further research regarding the effects of study abroad in relation to career development. This study examined near-term effects of a semester study…