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A 26,000-student study shows AI's hidden learning cost takes two full years to surface

A study of more than 26,000 Chinese students found that AI users finished homework faster and scored higher but performed up to 24 percent worse on exams. The full impact on entrance exam results took about two years to show up, meaning short-term studies systematically underestimate the damage. The article A 26,000-student study shows AI's hidden learning cost takes two full years to surface appeared first on The Decoder.

A 26,000-student study shows AI's hidden learning cost takes two full years to surface
Primary source the-decoder.com ↗

Published July 4, 2026 · Category: AI Briefing

Overview

A study of more than 26,000 Chinese students found that AI users finished homework faster and scored higher but performed up to 24 percent worse on exams. The full impact on entrance exam results took about two years to show up, meaning short-term studies systematically underestimate the damage.

Details

The article A 26,000-student study shows AI's hidden learning cost takes two full years to surface appeared first on The Decoder.

Source

Originally published at the-decoder.com.

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