Author

Shuyi Fan

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Jul 2026

Rethinking LLM-Judged Helpfulness as a Pedagogy Signal: A Pre-Registered Audit Across Tutor Models

A post hoc robustness audit of the same 1,179 confirmatory answer-phase tutor turns under the frozen helpfulness and pedagogy rubrics finds that general-purpose helpfulness is not a reliable pedagogy signal.

Shuyi Fan, Boyuan Deng, Mengyu Xu et al. · arXiv.org · 1 citation