What question did this study set out to answer?

The aim is to explore the effectiveness of LLM-powered chatbots in enhancing argumentative writing quality and linguistic accuracy in EFL learners.

July 11, 2026RELC Journal

Using dynamic feedback from customized LLM-powered chatbots in EFL argumentative writing

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Innovative practice improves argumentative writing quality in EFL students, suggesting scalable instructional strategies.

The aim is to explore the effectiveness of LLM-powered chatbots in enhancing argumentative writing quality and linguistic accuracy in EFL learners.
Implemented a practice in an undergraduate English for Academic Purposes course.
Utilized two custom-built LLM-powered chatbots for interactive feedback and dynamic assessment.
Engaged students in an iterative multi-draft writing process.
Customized LLM-powered chatbots provided dynamic feedback to support writing at scale.
Instructors remained integral to the process, addressing automated feedback limitations.
Improvements noted in argumentation quality and linguistic accuracy among students.

Yi Chen (2026) studied this question.

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