AI Tutor Improves Student Exam Scores

University of Wisconsin–La Crosse economists ran a randomized study in spring 2025 using Macro Buddy, a ChatGPT-based tutor with web access disabled, for 140 undergraduate macroeconomics students across four sections. They found students using Macro Buddy plus peer discussion earned the highest exam scores by the third test, while Macro Buddy alone also outperformed the control, suggesting guided AI prompts support learning.
Key Points
- 1Shows Macro Buddy plus peer discussion yields highest average exam scores among 140 students.
- 2Highlights that tutoring-style, question-driven prompts encourage active reasoning rather than passive answer consumption.
- 3Suggests educators should integrate guided-GPT tutors with peer discussion to improve student learning outcomes.
Scoring Rationale
Experiment provides actionable evidence for guided-AI tutoring, limited by single-site undergraduate sample and short timeframe.
Sources
Public references used for this report.
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