A study of 27,000 students aged 12 to 18 in China reveals a striking paradox: using AI for homework improves grades but undermines exam performance.
Over six months, students who relied on AI for their assignments saw average homework grades jump 18% and cut their task completion time by 30%. Yet when facing exams, these same students scored 20% lower than their peers who didn't use AI at all. The gap suggests that while AI shortcuts deliver immediate homework wins, they short-circuit the learning process itself—leaving students unprepared when they must demonstrate knowledge without technological assistance.