This dissertation examined classification outcome differences among four popular individual supervised machine learning (ISML) models (logistic regression, decision tree, support vector machine, and multilayer perceptron) when predicting minor class membership within imbalanced datasets. The study context and the theoretical population sampled…

There is a gap in the literature regarding the association between critical thinking (CT) skills and student success in chemistry. This study sought to fill this gap by evaluating the association between CT skills and student success in chemistry. The purpose of this study was (a) to determine whether there is a positive correlation between CT…

This study examined the relationships between leadership styles, self- efficacy, and team dynamics of special education teachers (SETs) working with the moderate/severe student population. Review of the literature suggests that it is common for special education teacher candidates to receive little to no training on how to supervise and…

Two binary logistic regression analyses were conducted across survey data from 254 master's-level graduates to answer research questions about predicting Willingness to Give to their graduate alma mater and predicting Actual Alumni Giving behavior to their graduate alma mater. The predictor variables are dimensions from the community of inquiry…

The purpose of this quantitative causal-comparative study was to examine the effect that Career and Technical Education (CTE) concentrators, non-CTE concentrators and academic concentrators have on the on-time graduation of 1035 high school students in 7 high schools in Arizona for the 2015--2016 school year. There were three research questions…

Limited research has investigated dissertation methodology choice and the factors that contribute to this choice. Quantitative research is based in mathematics and scientific positivism, and qualitative research is based in constructivism. These underlying philosophical differences posit the question if certain factors predict dissertation…

This study examined factors that may affect the retention of first-time, full-time college freshmen to sophomore year. Institutions in the Appalachian College Association (ACA) were invited to participate, and nine of the 35 member schools provided data. The research questions were (1) Is there a relationship between retention for students'…

Community colleges provide access, preparation and pathways to the four year institution. Transfer students from community colleges are deeply embedded in the higher education system though many have to face the issues of being academically unprepared, varying expectations of the transfer institution, and the stigma of being a transfer student.…

This quantitative correlational study included an investigation of potential factors effecting high attrition rates in postsecondary online courses. Online learner-instructor interaction was examined by assessing instructor response times (RTs), student satisfaction, and final course grades at an online two-year postsecondary institution. A sample…

The purpose of this study was to examine adult developmental mathematics (ADM) students' knowledge of fraction addition and subtraction as it relates to their demonstrated fraction schemes and ability to disembed in multiplicative contexts with whole numbers. The study was conducted using a mixed methods sequential explanatory design. In the first…

To address the issues of affordability and student persistence through graduation, some institutions of higher education have embraced the Malcolm Baldrige National Quality Award (MBNQA) program. The fact that several of these institutions have subsequently shown improvements in affordability and student retention suggests that other colleges and…

There are a myriad of factors that contribute to the lowest performing schools in Georgia that School Improvement Grants (SIGs) are designed to ameliorate. Declining graduation rates, dwindling student achievement, high teacher turnover rates, and students leaving high school at an alarming rate ill-prepared for college and/or the workforce…

Students who graduate from a practitioner program in prosthetics & orthotics must achieve certification in order to obtain licensure and practice independently in 16 states. In states where licensure is not mandatory, graduates may choose to pursue certification in order assure patients that they are practicing at the highest level as well as…

How master of business administration (MBA) graduates influence themselves to achieve their objectives in their careers can be linked to how well they identified with academics throughout their education. It is important that scholars understand this relationship between academic and career performance. The ability to self-regulate, self-motivate,…

Online learning has caused a seismic shift in higher education since its rise beginning at the turn of the century. A portion of that impact has been on the ascent of the part-time employee teaching online. Adjunct instructors account for the overwhelming majority of the faculty providing education to these online learners. Because an instructor's…