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395 points pseudolus | 4 comments | | HN request time: 0.769s | source
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dtnewman ◴[] No.43633873[source]
> A common question is: “how much are students using AI to cheat?” That’s hard to answer, especially as we don’t know the specific educational context where each of Claude’s responses is being used.

I built a popular product that helps teachers with this problem.

Yes, it's "hard to answer", but let's be honest... it's a very very widespread problem. I've talked to hundreds of teachers about this and it's a ubiquitous issue. For many students, it's literally "let me paste the assignment into ChatGPT and see what it spits out, change a few words and submit that".

I think the issue is that it's so tempting to lean on AI. I remember long nights struggling to implement complex data structures in CS classes. I'd work on something for an hour before I'd have an epiphany and figure out what was wrong. But that struggling was ultimately necessary to really learn the concepts. With AI, I can simply copy/paste my code and say "hey, what's wrong with this code?" and it'll often spot it (nevermind the fact that I can just ask ChatGPT "create a b-tree in C" and it'll do it). That's amazing in a sense, but also hurts the learning process.

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enjo ◴[] No.43640528[source]
> it's literally "let me paste the assignment into ChatGPT and see what it spits out, change a few words and submit that".

My wife is an accounting professor. For many years her battle was with students using Chegg and the like. They would submit roughly correct answers but because she would rotate the underlying numbers they would always be wrong in a provably cheating way. This made up 5-8% of her students.

Now she receives a parade of absolutely insane answers to questions from a much larger proportion of her students (she is working on some research around this but it's definitely more than 30%). When she asks students to recreate how they got to these pretty wild answers they never have any ability to articulate what happened. They are simply throwing her questions at LLMs and submitting the output. It's not great.

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DSingularity ◴[] No.43640669[source]
This is now reality -- fighting to change the students is a losing battle. Besides in terms of normalizing grade distributions this is not that complicated to solve.

Target the cheaters with pop quizzes. Prof can randomly choose 3 questions from assignments. If students cant get enough marks on 2/3 of them they are dealt a huge penalty. Students that actually work through the problems will have no problems with scoring enough marks on 2/3 of the questions. Students that lean irresponsibly on LLMs will lose their marks.

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cellularmitosis ◴[] No.43640910[source]
Why not just grade solely based on live performance? (quizzes and tests)

Homework would still be assigned as a learning tool, but has no impact on your grade.

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deepsun ◴[] No.43641123[source]
I've heard that's how studying is done in Oxford/Cambridge: https://en.wikipedia.org/wiki/Tutorial_system
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1. vmilner ◴[] No.43641367[source]
Certainly with maths you’re marked almost totally on written exams, but even if that weren’t true you’re also required to go over example sheets (hard homework questions that don’t form part of the final mark) with a tutor in two-student sessions so it’d be completely obvious if you were relying on AI.
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2. miningape ◴[] No.43641692[source]
I really like oral exams on top of regular exams. The teacher can ask questions and dive into specific areas - it'll be obvious who is just using LLMs to answer the questions vs those who use LLMs to tutor them.
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3. guappa ◴[] No.43643413[source]
In italy there's an oral in most exams. In math exams you're asked proofs of theorems (that were part of the course).
4. deepsun ◴[] No.43647380[source]
Of course, the reasons they do quizes is to optimize the process (need less tutors/examiners), and to remove bias (any tutor holds biases one way or the other).