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Abstract

Research on the impact of class size on student motivation and performance can be important for university instructors. This paper investigates the influence of class size on exam performance and attendance rates. Empirical analyses show that students in the larger section of microeconomic principles taught by the same instructor did not perform significantly worse on exams with the exception of the cumulative final. This is attributed to a significant drop in attendance at the end of the semester. Blinder-Oaxaca style decompositions of the residual effects reveal that the negative effects of large lectures can be greater for lower achieving students.

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