Effects of School Quality on Student Achievement: Discontinuity Evidence from Kenya
利用肯尼亚精英公立中学的招生随机性，通过断点回归设计估计了就读这些学校对学生学业进展和考试成绩的因果效应，发现对学习成果没有显著正面影响，说明其声誉主要源于学生筛选而非增值效应。
The most desirable Kenyan secondary schools are elite government schools that admit the best students from across the country. We exploit the random variation generated by the centralized school admissions process in a regression discontinuity design to obtain causal estimates of the effects of attending one of these elite public schools on student progression and test scores in secondary school. Despite their reputations, we find little evidence of positive impacts on learning outcomes for students who attended these schools, suggesting that their sterling reputations reflect the selection of students rather than their ability to generate value-added test score gains.