The implementation of Positive Behavioral Interventions and Supports (PBIS) has been attributed to a decrease in office discipline referrals (ODRs) and suspensions and to increase academic performance, and engagement, as well as staff, family, and student perceptions of a safe and positive school climate. High schools have had more significant…

Mathematical justifications offer an approach to which students deepen and extend their mathematical thinking. This process has the potential to enhance students' conceptual understanding. Mathematical practices and process standards ask students to use critical thinking skills to justify their reasoning, but this is usually seen as proofs in high…

The purpose of this research was to explore the coherence and effectiveness of an assessment approach that combined principles of cognitive-based assessment, performance assessment, and the Next Generation Science Standards. By drawing on research on learning progressions and cognition in geoscience to design, implement, and analyze an Earth…

This study focuses on creating a reliable and valid instrument to measure high school students' perceptions of academic challenge. The research is divided into four phases: qualitative analysis, item development, exploratory factor analysis (EFA), and validation. Initial data from college students' retrospective views and high school students'…

This three-paper dissertation systematically investigates the methodology issues related to using observational systems to observe, analyze, and interpret teachers' reformed teaching practices within the K-12 classroom context. Each paper contributes a distinct perspective to evaluate instructional practices accurately, consistently, and…

This study highlights the role and importance of advanced, machine learning-driven predictive models in enhancing the accuracy and timeliness of identifying students at-risk of negative academic outcomes in data-driven Early Warning Systems (EWS). K-12 school districts have, at best, 13 years to prepare students for adulthood and success. They…

This dissertation develops and evaluates the validity and reliability of the Skills Self-Efficacy Scale for Adolescents (SSES-A), a measure designed to assess adolescents' self-efficacy in critical future skills: problem-solving, communication, creativity, collaboration, and critical thinking. Anchored in Social Cognitive Theory and Psychometric…

This quantitative study developed a measurement instrument, The Assessment of Historical Perspective-Taking (AHPT), to evaluate historical perspective-taking skills among 15- and 16-year-old students within their United States History classes by adapting an existing measurement instrument developed in Germany. Applying a theoretical framework that…

Operationalism, representationalism, and pragmatism are three major philosophies of measurement in psychology and education. These philosophies play important roles in designing and conducting measurements, as well as interpreting results. When measurement results are available, validity evidence plays important roles in supporting the…

The purpose of this study is to develop and validate instrument-specific rating scales to evaluate the classroom performances of middle and high school students. The study is guided by the following research questions: 1. What does Rasch measurement analysis reveal about the psychometric properties (i.e., validity and reliability) of items,…

Teacher evaluation systems are designed to provide teachers with feedback to improve their practice. The feedback, however, is oftentimes not delivered in a way that considers the underlying cognitive processes that teachers experience when presented with performance feedback (Jordan & Audia, 2012). According to performance feedback theory,…

Historically Black colleges and universities (HBCUs) across the country have begun to implement intervention programs, such as summer bridge programs, to address potential gaps and aid students in their academic persistence, as Black students continuously persist to graduation at lower rates. However, many programs lack a way to objectively…

The theoretical basis of the proposed study is drawn from an ecological-transactional (Lynch & Cicchetti, 1998) systems approach to development, which focuses on contexts, and correspondingly, overlays the gender affirmative model's (GAM) transactional model of support (Keomeier & Ehrensaft, 2018) to reveal protection in the school…

School systems across the United States increasingly use performance-based assessments (PBAs) as alternatives to traditional standardized tests, like the SAT, to make post-secondary and workforce readiness (PWR) determinations. However, very little research has been conducted to validate such alternative assessments as valid indicators of a…

Geometric proof-writing is a widely known cause of stress for secondary school students and teachers alike. As the textbook is the primary curricular tool utilized by novice teachers, a two-part qualitative study was conducted to determine (a) the types of proofs presented in a typical high school geometry textbook and (b) teachers' preparedness…