departments have historically differentrules on the provision of feedback to their students. Our theoretical framework makes … precisethat if feedback provides students with a signal of their true ability, then the effect of feedbackdepends on the balance … of standard substitution and income effects, and whether students areover or under confident with regards to their true …

leading UK university, we present evidence on the effects of class size on students’ test scores. We observe the same student …-linear class size effects controlling for unobserved heterogeneity of both individual students and faculty. We find that — (i) at …) students at the top of the test score distribution are more affected by changes in class size, especially when class sizes are …