Enhancing instructional design learning: a comparative study of scaffolding by a 5E instructional model-informed artificial intelligence chatbot and a human teacher

To address the limitations of general-purpose artificial intelligence (AI) tools, we developed a task-oriented AI chatbot based on the 5E (i.e. "engage", "explore", "explain", "elaborate" and "evaluate") model to scaffold students' instructional design process. We examined the impact of integrating the 5E instructional model-informed AI chatbot on students' learning performance and perceptions. The results indicated that the AI chatbot, when combined with human teacher scaffolding, significantly improved the students' instructional design performance relative to receiving human teacher scaffolding only. The chatbot provided valuable suggestions on instructional design frameworks, class activities and teaching topics during the "explore" phase. In the "evaluate" phase, the chatbot offered immediate feedback on the students' design plans and proposed alternative instructional frameworks regarding areas for improvement. However, the students expressed concerns about the chatbot's evaluation quality, noting that it needed to be better aligned with the course assessment rubric. We recommend using AI chatbots for instructional design conceptualisation, although we emphasise the critical role of human teachers in evaluating final design work and providing timely support.