行動學習之聊天機器人的開發和評估：優化針對 EFL 學生的基於行動裝置的口語簡報支援研究
Author(s):
Neil E. Barrett (Center for Bilingual Education, Southern Taiwan University of Science and Technology)
Gi-Zen Liu (Department of Foreign Languages and Literature, National Cheng Kung University)
Keng-Chih Hsu (Language Center, National Pingtung University of Science and Technology)
Po-Han Wu (Department of Information and Learning Technology, National University of Tainan)
Abstract:
Chatbots have shown potential for engaging students in language learning, especially in terms of motivating students to learn vocabulary and grammar both formally and informally. In this study, we designed a Google Dialogflow-based chatbot as an instructor and peer chatbot and used instructional design guidelines for mobile learning apps. A prototype of the app was tested by 38 students over 4 weeks. Eight students were selected for open-ended interviews on their perceptions of the app. A questionnaire into oral presentation problems and skills was created and distributed to 48 undergraduate students and 7 instructors experienced in teaching oral presentation skills to students with lower language abilities (B1 and below). The learning material was then evaluated according to the principles of learner-centered education to improve the chatbot app material and design. Overall, the students found EOPA 2 helped them with the language and structure of oral presentations, but found the interface difficult to navigate, and had some problems with audio input. Questionnaire results indicated that lower-level learners need more help with oral presentation language, pronunciation, and presentation structure. Public speaking anxiety is also an issue. The instructors did not recognize public speaking anxiety as a major problem for students. The findings will be used to revise EOPA 2 and develop a mobile-based chatbot to serve the oral presentation needs of undergraduate English learners in higher education.
Keywords:
chatbot、design-based-research、English for academic purposes (EAP)、learner-centered、oral presentations
