The study explores the effectiveness of multimodality teaching using the 4MAT Model. A meta-analysis was conducted with empirical studies on instruction via multimodality teaching in preschool, K-12, and higher education. The studies in the meta-analysis involved an experimental and control group. The control group received traditional teaching…

This research study conducted a meta-analysis to integrate the studies that investigated the effectiveness of project-based learning on academic achievement based on a worldwide higher-education population. The researcher explored the variables that previous meta-analysis studies used to evaluate academic achievements, such as student grade point…

Meta-analytic Structural Equation Modeling (MASEM) is the combination of meta-analysis (MA) and structural equation modeling (SEM). With new MASEM methodologies developed over the past few years, there is an opportunity to compare the past approaches with the new ones. The purpose of this dissertation is two-fold. First, the parameter estimates,…

This dissertation is a three-piece dissertation, including two empirical research (Chapter 1 and Chapter 2) and a methodological improvement of prior work (Chapter 3), to address issues of the effects of approaches to learning on academic achievement in childhood and power analysis for a three-level model in meta-analysis. Approaches to learning…

Early-childhood researchers and practitioners have become increasingly aware that schools must integrate social and emotional learning outcomes into curricula and instruction to maximize children's learning and well-being. Behavioral regulation, which falls under the broader self-management social and emotional learning competency, has been linked…

The present dissertation is a synthesis and meta-analysis of the 15-year-old research domain of the L2 Motivational Self System (L2MSS) model initiated by Dornyei (2005). The study is based on data from 100 studies involving 144 unique samples and 51,905 participants, and it addresses the inter-relationships of L2MSS elements (i.e., the Ideal L2…

More than 85% of federally funded research initiatives fail to produce significant positive results (Coalition for Evidence-Based Policy, 2013). Moreover, of the less than 15% that do yield positive results, none show replicability outside of their original setting (Pogrow, 2017; Kizilcec et al., 2020). Mixed results are present in even the most…

This study examined the relationship of Problem-based Learning (PBL) and medical students' attitudinal behavior and academic outcomes. The analyses of 14 independent, primary studies conducted between 2003-2016, on 4,981 medical students across various medical schools were included in the study. The data were examined using a meta-analysis…

This research is an examination of the instructional leadership practices of effective rural superintendents who oversee school districts in small, rural school districts in the most northern New England states of Maine, New Hampshire, and Vermont. The study looked at the successful leadership practices of school district superintendents who have…

How parents interact with their children impacts many crucial facets of children's lives. Over the last 4 decades, researchers have identified four different parenting styles: authoritative, authoritarian, permissive, and disengaged. Hundreds of studies conducted all over the world, have identified correlations between parenting style and many…

Understanding mathematics is an essential part of everyday life and can range from simple tasks such as using basic math skills to more complex tasks. Success in mathematics is a requirement for success in today's modern world. A gap in developing mathematical skills can create complications and interfere with job opportunities. Another basic…

The purpose of the study was to synthesize research studies that examined interventions used with students with emotional disturbance. Specific goals were to determine the extent to which interventions improve outcomes for students with emotional disturbance, whether emotional disturbance characteristics are related to the effectiveness of…

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 main purpose of this research was to survey the literature about the U.S. education system and synthesize the important conclusions that could be identified as the main features of the education system in general as they relate to student achievement. The criteria were set and the meta-analysis procedures were carefully followed. This process…

This series of meta-analyses investigates the effects of social interdependence (cooperative, competitive, and individualistic learning structures) on achievement and peer relationships among college students. This study quantitatively synthesized the literature on the effects of social interdependence on achievement and peer relationship outcomes…