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    <abstract>We present a method for diagnostic assessment Q-matrix specification combining LLM input with model-based empirical validation. An LLM generates an initial Q-matrix from item content, and response data guide subsequent Q refinement. The approach integrates substantive rationale with empirical evidence to support scalable and measurement theory-grounded diagnostic assessment.</abstract>
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%0 Conference Proceedings
%T CDM Q-Matrix Discovery with LLMs: Fusing Domain Knowledge with Empirical Evidence
%A Zhang, Susu
%A Rao, V. N. Vimal
%Y Wilson, Joshua
%Y Ormerod, Christopher
%Y Beiting-Parrish, Magdalen
%S Proceedings of the Artificial Intelligence in Measurement and Education Conference (AIME-Con): Works in Progress
%D 2026
%8 October
%I National Council on Measurement in Education (NCME)
%C Wyndham Grand Pittsburgh Downtown, Pittsburgh, Pennsylvania, United States
%@ 979-8-9983004-1-7
%F zhang-rao-2026-cdm
%X We present a method for diagnostic assessment Q-matrix specification combining LLM input with model-based empirical validation. An LLM generates an initial Q-matrix from item content, and response data guide subsequent Q refinement. The approach integrates substantive rationale with empirical evidence to support scalable and measurement theory-grounded diagnostic assessment.
%U https://aclanthology.org/2026.aimecon-wip.29/
%P 216-230

Markdown (Informal)

[CDM Q-Matrix Discovery with LLMs: Fusing Domain Knowledge with Empirical Evidence](https://aclanthology.org/2026.aimecon-wip.29/) (Zhang & Rao, AIME-Con 2026)

• CDM Q-Matrix Discovery with LLMs: Fusing Domain Knowledge with Empirical Evidence (Zhang & Rao, AIME-Con 2026)

ACL

• Susu Zhang and V. N. Vimal Rao. 2026. CDM Q-Matrix Discovery with LLMs: Fusing Domain Knowledge with Empirical Evidence. In Proceedings of the Artificial Intelligence in Measurement and Education Conference (AIME-Con): Works in Progress, pages 216–230, Wyndham Grand Pittsburgh Downtown, Pittsburgh, Pennsylvania, United States. National Council on Measurement in Education (NCME).