AI Research
Jul 21, 2026
Study shows AI improves homework scores but negatively impacts exam performance
Jul 21, 2026
AI Summary
Research involving over 26,000 Chinese students reveals that while AI tools can enhance homework scores by 18% and reduce completion time by 30%, they also lead to a significant decline in exam scores. This trend raises concerns about the long-term effects of AI on student learning and critical thinking skills.
- A study by the Centre for Economic Policy Research analyzed 26,811 Chinese students in grades seven to 12.
- The use of AI for homework resulted in an 18% increase in homework scores and a 30% reduction in completion time.
- However, within six months, monthly exam scores dropped by 20%, and college entrance exam scores fell by 18% to 24%, worsening over two years.
- Researchers identified that students who relied heavily on AI for homework were primarily responsible for the decline in test scores.
- The findings raise concerns about the effectiveness of AI in promoting genuine learning and critical thinking among students.
- A significant percentage of U.S. high school students (84%) report using AI for homework, leading to discussions about academic integrity and the pressures students face.
- Experts argue that reliance on AI tools may hinder the development of essential cognitive skills, echoing historical concerns about educational technology's impact on learning.
aieducationstudent performancecognitive abilitiesgen z