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cs.CL2026
Representing Visual Evidence for Item Difficulty Prediction: Visual Textualization and Image-Native Modeling
Han Chen, Ming Li, Hong Jiao +1
Predicting item difficulty from content can provide an initial estimate for newly developed questions before sufficient student responses are available. Existing approaches typical…
cs.CL2026
LLMs Struggle to Measure What Distinguishes Students of Different Proficiency Levels: A Study of Item Discrimination in Reading Comprehension Assessment
Han Chen, Ming Li, Chenguang Wang +4
Existing work on LLM-based educational assessment has focused largely on item difficulty, but difficulty alone does not indicate whether an item meaningfully distinguishes higher-…