Study: AI Ghostwriting Boosts Grades but Hurts Learning
sanjaykalra · x · 2026-07-13
This post summarizes a 30-month study involving 26,000 students, concluding that while generative AI helps students score higher on assignments, it may undermine genuine learning.
- Students using GenAI saw an 18% average increase in assignment grades but reduced their study time by 30%.
- In closed-book exams without these tools, test scores dropped by 20% within 6 months.
- By the second year, entrance exam scores fell by up to 24%.
The author emphasizes that while AI ghostwriting and research boost "output," they bypass the productive struggle needed for real skill growth. Therefore, educational assessments should look beyond the final product and measure students' depth of understanding and independent thinking.
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