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Causal Effects Of Single-Sex Schools On College Entrance Exams And College Attendance: Random Assignment In Seoul High Schools, Hyunjoon Park, Jere R. Behrman, Jaesung Choi

Hyunjoon Park

Despite the voluminous literature on the potentials of single-sex schools, there is no consensus on the effects of single-sex schools because of student selection of school types. We exploit a unique feature of schooling in Seoul, the random assignment of students into single-sex versus coeducational high schools, to assess causal effects of single-sex schools on college entrance exam scores and college attendance. Our validation of the random assignment shows comparable socioeconomic backgrounds and prior academic achievement of students attending single-sex schools and coeducational schools, which increases the credibility of our causal estimates of single-sex school effects. Attending all-boys schools or …