Applied researchers faced with limited resources can utilize planned missing designs by incorporating missing data into their research design to collect more and higher quality data compared to a conventional experimental design. Two-method measurement planned missing designs (TMM-PMD) are a type of planned missing design whereby researchers…

The purpose of this dissertation is to develop principles and strategies for and identify limitations of multisite cluster randomized trials in the context of partially and fully nested designs. In the first study, I develop principles of estimation, sampling variability, and inference for studies that leverage multisite designs within the context…

Missing data is a common challenge to any researcher in almost any field of research. In particular, human participants in research do not always respond or return for assessments leaving the researcher to rely on missing data methods. The most common methods (i.e., Multiple Imputation and Full Information Maximum Likelihood) assume that the…

In education, sample characteristics can be complex due to the nested structure of students, teachers, classrooms, schools, and districts. In the past, not many considerations were given to such complex sampling schemes in statistical power analysis. More recently in the past two decades, however, education scholars have developed tools to conduct…

Recommended learning goals for students in introductory statistics courses include the ability to recognize and explain the key role of randomness in designing studies and in drawing conclusions from those studies involving generalizations to a population or causal claims (GAISE College Report ASA Revision Committee, 2016). The purpose of this…

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disability characterized by symptoms of inattention, hyperactivity and impulsiveness, which may cause impairment in a variety of cognitive, social, behavioral, and emotional domains. Extensive research has been conducted to determine the best course of treatment for…

The passing of the Education for All Handicapped Children Act---later renamed the Individuals With Disabilities Education Act---mandated that schools and districts ensure that all available education services were comparable between students with disabilities and general education students. This mandate led to students with disabilities and…

The purpose of this study was to investigate the differences between alternative certification pathways, specifically those offered through a university-based, post baccalaureate certification program and a regional education service center certification program. A quantitative research design was implemented and archived scores on the TExES PPR…

Sexual violence on college campuses is a pervasive problem with the potential for extensive physical and psychological health consequences. Institutions have begun implementing prevention programs; however, more research is needed to understand whether these programs are effective. Bystander intervention programs have increased in popularity…

As the number of English Language Learners (ELLs) continues to grow in our country, schools are looking for ways to better identify and to help those who need English as a Second Language (ESL) services (Mossaad, 2016). ELLs present a unique challenge to school districts as some perceive that the federal guidelines are vague, but require school…

Single-case designs (SCDs) are often used to examine the impact of an intervention over brief periods of time (Kratochwill & Stoiber, 2002; Segool, Brinkman, & Carlson, 2007). The majority of SCDs are inspected using visual analysis (Kromrey & Foster-Johnson, 1996; Morgan & Morgan, 2009). Although the single-case literature…

Companies constantly adapt to new business environments in order to be successful and stay relevant. Innovation is a vital source for a company to be competitive in the business environment. Innovations enable companies to develop and utilize new strategies, tools, and tactics as well as new products and services. Enterprise resource planning…

This quantitative study explored the obstacles African American male students face that can hinder their academic progress at community colleges within the rural regions of Louisiana. This study viewed the collective experiences of African American males in community colleges in order to improve their academic outcomes, completion, and retention…

Research has been conducted to identify and analyze how schools are determining that the activities of their Professional Learning Community (PLC) are directly tied to student achievement as there is currently a gap in the existing literature with regards to this topic. For the purpose of this study, a "successful" PLC was defined as one…

The problem addressed by this project study was low levels of adjunct faculty compliance and satisfaction with the professional development program at a local college. The purpose of the study was to determine if an alternative delivery method would yield higher levels of compliance and satisfaction than would a traditional professional…