Professor suspected AI-powered cheating on take-home midterms, makes finals in-person — only two students scored within 10% of their midterm score

Grades dropped from 96 to 48 percent when a Brown professor made students take the exam without AI

An economics professor at Brown University suspects most of his 86 students used AI to cheat on a take-home exam that averaged 96 percent. When he made the final an in-person test, 18 students dropped the course, nine…