Study: AI Boosts Homework Grades by 18% but Lowers Test Scores by 20%

steveplunkett · x · 2026-08-22

A comparative study reveals a performance gap for students using AI: homework grades increased by an average of 18%, while subsequent test scores dropped by 20%. This suggests that relying on AI creates a false sense of mastery, weakening actual understanding and independent thinking. The key takeaway is to avoid outsourcing thinking and comprehension to AI.

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