Distilling ChatGPT for Explainable Automated Student Answer Assessment

Jiazheng Li, Lin Gui, Yuxiang Zhou, David West, Cesare Aloisi, Yulan He


Abstract
Providing explainable and faithful feedback is crucial for automated student answer assessment. In this paper, we introduce a novel framework that explores using ChatGPT, a cutting-edge large language model, for the concurrent tasks of student answer scoring and rationale generation. We identify the appropriate instructions by prompting ChatGPT with different templates to collect the rationales, where inconsistent rationales are refined to align with marking standards. The refined ChatGPT outputs enable us to fine-tune a smaller language model that simultaneously assesses student answers and provides rationales. Extensive experiments on the benchmark dataset show that the proposed method improves the overall QWK score by 11% compared to ChatGPT. Furthermore, our thorough analysis and human evaluation demonstrate that the rationales generated by our proposed method are comparable to those of ChatGPT. Our approach provides a viable solution to achieve explainable automated assessment in education
Anthology ID:
2023.findings-emnlp.399
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2023
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
6007–6026
Language:
URL:
https://aclanthology.org/2023.findings-emnlp.399
DOI:
10.18653/v1/2023.findings-emnlp.399
Bibkey:
Cite (ACL):
Jiazheng Li, Lin Gui, Yuxiang Zhou, David West, Cesare Aloisi, and Yulan He. 2023. Distilling ChatGPT for Explainable Automated Student Answer Assessment. In Findings of the Association for Computational Linguistics: EMNLP 2023, pages 6007–6026, Singapore. Association for Computational Linguistics.
Cite (Informal):
Distilling ChatGPT for Explainable Automated Student Answer Assessment (Li et al., Findings 2023)
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PDF:
https://aclanthology.org/2023.findings-emnlp.399.pdf