Education Commons^™

The Effect Of Principal Leadership On Student Achievement: A Multivariate Meta-Analysis, Huang Wu

Dissertations

Principal leadership has been widely considered as a significant factor for school improvement and student learning. However, there are discrepancies among previous findings and controversies on both the magnitude and nature of the relationship between principal leadership and student achievement. The purpose of this study is to further the understanding of whether and how principal leadership influences student achievement.

This study is a systematic review and multivariate meta-analysis of 42 empirical studies about principal leadership’s effects on student achievement, generated during the period between 2000 and 2020 in the United States. There were three parts for the analyses: (a) a …

A Meta-Analysis Of Energy Savings From Lighting Programs In Michigan, Teryila Ephraim Amough

Dissertations

In order to fill the gap in aggregates savings, the challenges faced by electric utilities for the demand of lighting energy are addressed by lighting efficiency programs. The shrinking capacity and electrical grid reliability call for improved ways to evaluate energy saving programs with evaluation methods that are robust in determining the impact of lighting programs. This study employed meta-analysis as an evaluation method to determine energy savings, impact, emissions of greenhouse gases (GHG), pollutants, and health effects from lighting programs in Michigan. The findings of the study showed the programs impact in Hedges’ g of 0.36 for the overall …

Addressing The Issue Of Meta-Analysis Multiplicity In Education And Psychology, Joshua R. Polanin

Dissertations

The concept of multiplicity, conducting multiple statistical significance tests in one study, has pervaded primary research over the last 7 decades (Hochberg & Tamhane, 1987). This continued discussion was due to the fact that multiplicity increases the probability of committing a Type 1 error (i.e., deriving a false conclusion). Little attention has been paid, unfortunately, to multiplicity in meta-analysis (Tendal, Nuesch, Higgins, Juni, & Gotzsche, 2011) and calls have been made for meta-analysis methodologists to address this critical issue (Bender et al., 2008). As such, the purpose and significance of this project was to answer these calls by formally quantifying …

Meta-Analysis Of The Relationship Between Collective Teacher Efficacy And Student Achievement, Rachel Jean Eells

Dissertations

Collective teacher efficacy is an emergent school level variable reflecting a faculty's collective belief in its ability to positively affect students. It has been linked in the literature to school achievement. This meta-analysis systematically synthesized results from 26 component studies, including dissertations and published articles, which reported at least one correlation between collective teacher efficacy and school achievement.

The research questions addressed the distribution of effect sizes for the relationship and the moderator variables that could explain any variance found among the studies. It was hypothesized that collective teacher efficacy would be strongly associated with subsequent student achievement, and that …