Delivering personalised, formative feedback to multiple problem-based learning groups in a short time period can be almost impossible. We employed ChatGPT to provide personalised formative feedback in a one-hour Zoom break-out room activity that taught practicing health professionals how to formulate evaluation plans for digital health initiatives. Learners completed an evaluation survey that included Likert scales and open-ended questions that were analysed. Half of the 44 survey respondents had never used ChatGPT before. Overall, respondents found the feedback favourable, described a wide range of group dynamics, and had adaptive responses to the feedback, yet only three groups used the feedback loop to improve their evaluation plans. Future educators can learn from our experience including engineering prompts, providing instructions on how to use ChatGPT, and scaffolding optimal group interactions with ChatGPT. Future researchers should explore the influence of ChatGPT on group dynamics and derive design principles for the use of ChatGPT in collaborative learning.

使用ChatGPT为实践医疗专业人员提供个性化形成性反馈，通过一小时Zoom分组活动教授数字健康计划的评估计划制定，调查表显示大多数受访者对反馈持积极看法，讨论范围广泛，但只有三个小组利用了反馈循环改进评估计划。未来教育者可以从我们的经验中学习，包括设计提示、提供使用ChatGPT的指导说明和支持最佳ChatGPT群组互动。未来研究应该探索ChatGPT在群体动态中的影响，并提出ChatGPT在协作学习中的设计原则。

使用ChatGPT在大型协作学习中提供格式化反馈：接近...但不如教育者