The Impact of Low-Ability Peers on Cognitive and Noncognitive Outcomes
JOURNAL OF HUMAN RESOURCES(2022)
Abstract
This article presents new experimental estimates of the impact of low-ability peers on own outcomes using nationally representative data from China. We exploit the random assignment of students to junior high school classrooms and find that the proportion of low-ability peers, defined as having been retained during primary school ("repeaters"), has negative effects on nonrepeaters' cognitive and noncognitive outcomes. An exploration of the mechanisms shows that a larger proportion of repeater peers is associated with reduced after-school study time. The negative effects are driven by male repeaters and are more pronounced among students with less strict parental monitoring at home.
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