Teacher Demonstrations in a BabyLM’s Zone of Proximal Development for Contingent Multi-Turn Interaction

Suchir Salhan, Hongyi Gu, Donya Rooein, Diana Galvan-Sosa, Gabrielle Gaudeau, Andrew Caines, Zheng Yuan, Paula Buttery


Abstract
Multi-turn dialogues between a child and caregiver are characterized by a property called contingency – prompt, direct, and meaningful exchanges between interlocutors. We introduce ContingentChat, a Teacher–Student framework that benchmarks and improves multi-turn contingency in a BabyLM trained on 100M words. Using a novel alignment dataset for post-training, BabyLM generates responses that are more grammatical and cohesive. Experiments with adaptive Teacher decoding strategies show limited additional gains. ContingentChat highlights the positive benefits of targeted post-training on dialogue quality and presents contingency as a challenging goal for BabyLMs.
Anthology ID:
2025.babylm-main.25
Volume:
Proceedings of the First BabyLM Workshop
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Lucas Charpentier, Leshem Choshen, Ryan Cotterell, Mustafa Omer Gul, Michael Y. Hu, Jing Liu, Jaap Jumelet, Tal Linzen, Aaron Mueller, Candace Ross, Raj Sanjay Shah, Alex Warstadt, Ethan Gotlieb Wilcox, Adina Williams
Venue:
BabyLM
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
323–355
Language:
URL:
https://preview.aclanthology.org/ingest-emnlp/2025.babylm-main.25/
DOI:
Bibkey:
Cite (ACL):
Suchir Salhan, Hongyi Gu, Donya Rooein, Diana Galvan-Sosa, Gabrielle Gaudeau, Andrew Caines, Zheng Yuan, and Paula Buttery. 2025. Teacher Demonstrations in a BabyLM’s Zone of Proximal Development for Contingent Multi-Turn Interaction. In Proceedings of the First BabyLM Workshop, pages 323–355, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
Teacher Demonstrations in a BabyLM’s Zone of Proximal Development for Contingent Multi-Turn Interaction (Salhan et al., BabyLM 2025)
Copy Citation:
PDF:
https://preview.aclanthology.org/ingest-emnlp/2025.babylm-main.25.pdf