Instructional coaching is a popular form of professional development for improving teacher instruction and student achievement. While there are numerous studies that have examined the impact of instructional coaching on student academic outcomes, very few studies have explored the influence of specific coaching models on student achievement.…

The United States faces high demand for science, technology, engineering, or mathematics (STEM) professionals and a scarce supply of individuals who pursue STEM careers, especially minority populations in the U.S with proficiency in a language other than English. The primary goal of this research was to determine the impact of use of Spanish in…

Cognitive diagnostic models can uncover students' mastery of multiple fine-grained skill attributes or problem-solving processes. A number of studies have applied cognitive diagnostic models to detect students' knowledge mastery in mathematics and language testing. However, few studies focus on cognitive diagnostic assessment in K-12 science…

The purpose of this study is to determine if the "Instructional Design Model" will improve science achievement. The study addressed the problem of low science achievement among 93 Grade 5 students. The theoretical framework that was applied to this study was developed by Ralph Tyler in 1949. The researcher believed that Tyler's…

This dissertation aims to investigate the effect size measures of differential item functioning (DIF) detection in the context of cognitive diagnostic models (CDMs). A variety of DIF detection techniques have been developed in the context of CDMs. However, most of the DIF detection procedures focus on the null hypothesis significance test. Few…

The purpose of this study was to examine the relationship between the implementation phase of the DuFour model of professional learning communities (PLCs) and students' achievement. A survey was emailed via Qualtrics to elementary principals throughout the Minnesota Elementary Principals' Association's (MESPA) central, northern, northeast, west,…

The purpose of this qualitative action research study was to describe a middle-level science teacher's transition to an inquiry-based, progressivist, student-centered model from a traditional, teacher-centered model as well to document the student-participants' perceptions of the new model. The study population consisted of one-hundred…

A primary purpose of cognitive diagnosis models (CDMs) is to classify examinees based on their attribute patterns. The Q-matrix (Tatsuoka, 1985), a common component of all CDMs, specifies the relationship between the set of required dichotomous attributes and the test items. Since a Q-matrix is often developed by content-knowledge experts and can…

This three-article dissertation considers the pedagogical practices for developing statistically literate students and teaching data-driven decision-making with the goal of preparing students for civic engagement and improving student achievement. The first article discusses a critical review of the literature on data-driven decision-making…

A talented, innovative workforce in science, technology, engineering, and mathematics (STEM) is a critical component of sustained economic growth and global competitiveness. The development of this workforce is a primary concern among policymakers, industry leaders, and academics. Although many students express an interest in STEM in secondary…

This research identifies a problem of practice with standardized science test scores declining over the last eight years. The Sea Turtle Elementary School for the Creative Arts (STESCA; pseudonym) schedule allowed 150 minutes per week for science instruction, compared with 450 minutes per week for mathematics instruction. Science instruction has…

Achievement emotions are critical for students' academic performance and career choices. The previous literature has focused on one specific type of achievement emotions--test anxiety--in Western contexts and neglected other various emotions experienced in different occasions such as attending classes. The present study aims to address the…

The purpose of this study was to build a forecasting model for medical students at risk using the survival analysis technique. Authors of previous studies have investigated dropouts from medical programs or success of medical students on national board exams. However, little research has been done to identify students at risk, mainly the timing of…

Contemporary research has suggested that in order for students to compete globally in the 21st century workplace, pedagogy must shift to include the integration of science and mathematics, where teachers effectively incorporate the two disciplines seamlessly. Mathematics facilitates a deeper understanding of science concepts and has been linked to…

The state of Georgia has a constitutional obligation to provide an adequate and free public education, financed by taxation, for the citizens of the state. Increased accountability measures, continuing projected budget shortfalls, and public resistance to raising property taxes are current challenges for public schools. This study attempted to…