In a widely cited study, Nina Mazar at the Questrom School of Business at Boston University and her colleagues had one group of students take a 20-problem test where they would be paid 50 cents per correct answer. It was a hard test — students averaged only 3.4 correct answers. A second group of students took the same test, but they graded their own work and reported their “scores” with no questions asked. The average in this group was 6.1 correct answers, suggesting some cheating. The third and most interesting group, though, began by signing an honor code and then took the test, followed by grading their own work. The result? An honorable 3.1 correct answers. Cheating was eliminated at the group level. Signing the honor code did the job.
https://www.nytimes.com/2020/11/13/opinion/online-learning-cheating.html
