AI worsens cheating, but homework effectiveness declined since 2008

emollick · x · 2026-08-19

A new paper confirms that AI has exacerbated student cheating, yet it also highlights a pre-existing decline in homework effectiveness. In 2008, doing homework improved final exam grades for 86% of students, but by 2017, that figure dropped to 45%, largely due to students copying answers from the internet long before generative AI became widespread.

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