In this meta-analysis study, different leadership approaches were combined, and the relationship between educational leadership and student achievement was analyzed. In the literature review, 151 research articles/dissertations, independent from one another, were brought together, and 131,498 study subjects were included in the sample group. The results of the analyses performed with a random effects model revealed that educational leadership has a medium-level effect on students’ achievement. Educational leadership has comprehensive effect on student achievement in vertical-collectivist cultures (e.g., in Asian) than horizontal-individualistic cultures (e.g., in USA). As was expected, the most comprehensive effect among leadership theories was found in instructional leadership. Considering the effect of educational leadership on students’ achievement, it is recommended to examine the effect of leadership on other components of school and stakeholders in future studies.

中文翻译：

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教育领导力对学生成就的影响：2008年至2018年研究的跨文化荟萃分析研究

在这项荟萃分析研究中，结合了不同的领导方式，并分析了教育领导与学生成就之间的关系。在文献综述中，将彼此独立的151篇研究论文/论文汇集在一起​​，样本组中包括131,498个研究对象。使用随机效应模型进行的分析结果表明，教育领导对学生的成就有中等水平的影响。在横向集体主义文化中（例如在亚洲），教育领导对学生成绩的综合影响要比横向个人主义文化（例如在美国）的影响更大。不出所料，领导理论中最全面的影响是教学领导。