Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
School choice systems designed to help disadvantaged groups might be hindered by information asymmetries. Kenyan elite secondary schools admit students from the entire country based on a national test score, district quotas, and stated school choices. We find even the highest ability students make school choice errors. Girls, students with lower test scores, and students from public and low quality schools are more likely to make such errors. Net of observable demographic characteristics, these errors are associated with a decrease in the probability that a student is admitted to an elite secondary school, relegating them to schools of lower quality.