Assessing confidence in AI-Assisted grading of physics exams through psychometrics: An exploratory study
OPEN ACCESS
Loading...
Author / Producer
Date
2025-04
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
This study explores the use of artificial intelligence in grading high-stakes physics exams, emphasizing the application of psychometric methods, particularly item response theory, to evaluate the reliability of AI-Assisted grading. We examine how grading rubrics can be iteratively refined and how threshold parameters can determine when AI-generated grades are reliable versus when human intervention is necessary. By adjusting thresholds for correctness measures and uncertainty, AI can grade with high precision, significantly reducing grading workloads while maintaining accuracy. Our findings show that AI can achieve a coefficient of determination of R² ≈ 0.91 when handling half of the grading load, and R² ≈ 0.96 for one-fifth of the load. These results demonstrate AI's potential to assist in grading large-scale assessments, reducing both human effort and associated costs. However, the study underscores the importance of human oversight in cases of uncertainty or complex problem solving, ensuring the integrity of the grading process.
Permanent link
Publication status
published
Editor
Book title
Journal / series
Volume
21 (1)
Pages / Article No.
10136
Publisher
American Physical Society