This meta-analysis examines the effects of school leadership on student achievement. The report describes a balanced leadership framework that resulted from a quantitative analysis, a review of theoretical literature on leadership, and insights from the research team. The quantitative analysis was based on 70 studies that met criteria established by the research team. Findings show a positive relationship between leadership and student achievement. The report also examines 21 leadership responsibilities that were found to be significantly correlated with student achievement.