Data on millions of SAT-takers show only half retake the exam, with even lower retake rates among low income and underrepresented minority students. Scoring below multiples of 100 increases retaking, implying some students have round number target scores. Regression discontinuity evidence finds retaking once improves admissions-relevant SAT scores by 0.3 standard deviations on average. Likely by strengthening college applications, retaking substantially increases four-year college enrollment, particularly for low income and underrepresented minority students. Eliminating disparities in retake rates could close up to 20 percent of the income gap and 10 percent of the racial gap in four-year college enrollment.

中文翻译：

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拿两个！SAT 重考和大学入学差距

数百万 SAT 考生的数据显示，只有一半的人重考，低收入和少数族裔学生的重考率甚至更低。分数低于 100 的倍数会增加重考，这意味着一些学生的目标分数是整数。回归不连续性证据发现，重考一次可使与招生相关的 SAT 分数平均提高 0.3 个标准差。通过加强大学申请，重考可能会大大增加四年制大学的入学率，特别是对于低收入和代表性不足的少数民族学生。消除重考率的差异可以缩小四年大学入学率中高达 20% 的收入差距和 10% 的种族差距。