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VLMs Predict Test Item Difficulty

VLMs Predict Test Item Difficulty

Researchers used GPT-4.1-nano to predict difficulty of data visualization literacy test items via text, images, or both. Multimodal approach achieved lowest MAE of 0.224, outperforming text-only (0.338) and vision-only (0.282). Held-out test showed MSE of 0.108, proving LLMs' psychometric potential.

ArXiv AIResearchMar 6#psychometrics#data-visualization
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