[beloch]

"This year, the economist decided that both the midterm and the final exams for his course would be of the take-home, closed-book type (there is a certain tradition of this at Ivy League schools). “It’s a very nice kind of exam, because as you’re giving students practically unlimited time to complete it, it lets you make it harder than normal, to see how far they can go.”

...

"But it also hurts him that the one time in 34 years that he decided to offer a take-home exam, for highly justified reasons, the response was wide-scale fraud."

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Not to in any way defend or condone academic misconduct, the fact that this was his teaching-career-first take-home exam is probably relevant. Take home exams can be fiendish. I remember having one in grad school where we were given a very insufficient 36 hours to complete it, and many people just didn't sleep. That was from a prof who knew what he was doing. This guy may have accidentally made his exam absolutely sadistic.

Couple this with the fact that students often have other exams they need to be studying for in the same time window. The pressure can be immense. The temptation to use AI to help is going to be hard for many to resist unless the penalties are severe and strictly enforced.

AI cheating is probably going to be a problem going forward in all situations, but open-book, take-home tests are going to bring it out more strongly than other test formats.