PT - JOURNAL ARTICLE AU - Cagala, Tobias AU - Glogowsky, Ulrich AU - Rincke, Johannes TI - Detecting and Preventing Cheating in Exams: Evidence from a Field Experiment AID - 10.3368/jhr.0620-10947R1 DP - 2021 Oct 13 TA - Journal of Human Resources PG - 0620-10947R1 4099 - http://jhr.uwpress.org/content/early/2021/10/07/jhr.0620-10947R1.short 4100 - http://jhr.uwpress.org/content/early/2021/10/07/jhr.0620-10947R1.full AB - This paper examines how to detect, document, and prevent plagiarism in exams. First, to identify and quantify plagiarism, we propose methods that compare similarities in multiple-choice answers between seat neighbors and nonneighbors. Second, we document cheating in undergraduate exams. Under baseline monitoring, at least 7.7% of the row-wise neighbor pairs plagiarized. Pairs composed of academically weaker students cheated more. Third, using a field experiment, we demonstrate that close monitoring eliminated cheating. By contrast, signing an honesty declaration doubled cheating relative to the control group. Complementary experiments suggest that the declaration backfired because it weakened the social norm of academic integrity.