AI Boosted Homework Scores by 18% – Then Exam Scores Dropped 20%, Study Shows
A study of 27,000 students in China found that AI tools improved homework scores by 18% but led to a 20% drop in exam scores when AI was unavailable. Researchers from Stockholm University and the University of Hong Kong tracked students aged 12-18, with 80% using AI like Doubao and DeepSeek. The findings highlight concerns about AI's impact on deep learning, echoing a smaller University of Pennsylvania study and sparking debate on Hacker News.
Students who used AI saw their average homework scores rise by 18% across all subjects over a six-month period, but scored 20% below classmates who had not used AI during the study period.