Your Students Don’t Use LLMs Like You Wish They Did

Sebastian Kobler, Matthew Clemson, Angela Sun, Jonathan K. Kummerfeld


Abstract
Educational NLP systems are typically evaluated using engagement metrics and satisfaction surveys, which are at best a proxy for meeting pedagogical goals. We introduce six computational metrics for automated evaluation of pedagogical alignment in student-AI dialogue. We validate our metrics through analysis of 12,650 messages across 500 conversations from four courses. Using our metrics, we identify a fundamental misalignment: educators design conversational tutors for sustained learning dialogue, but students mainly use them for answer-extraction. Deployment context is the strongest predictor of usage patterns, outweighing student preference or system design: when AI tools are optional, usage concentrates around deadlines; when integrated into course structure, students ask for solutions to verbatim assignment questions. Whole-dialogue evaluation misses these turn-by-turn patterns. Our metrics will enable researchers building educational dialogue systems to measure whether they are achieving their pedagogical goals.
Anthology ID:
2026.acl-long.875
Volume:
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Maria Liakata, Viviane P. Moreira, Jiajun Zhang, David Jurgens
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
19146–19170
Language:
URL:
https://preview.aclanthology.org/ingest-acl/2026.acl-long.875/
DOI:
Bibkey:
Cite (ACL):
Sebastian Kobler, Matthew Clemson, Angela Sun, and Jonathan K. Kummerfeld. 2026. Your Students Don’t Use LLMs Like You Wish They Did. In Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 19146–19170, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
Your Students Don’t Use LLMs Like You Wish They Did (Kobler et al., ACL 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl/2026.acl-long.875.pdf
Checklist:
 2026.acl-long.875.checklist.pdf