The Influences of a Virtual Instructor's Voice and Appearance on Learning from Video Lectures

Autor/inn/en	Pi, Zhongling; Deng, Lixia; Wang, Xu; Guo, Peirong; Xu, Tao; Zhou, Yun
Titel	The Influences of a Virtual Instructor's Voice and Appearance on Learning from Video Lectures
Quelle	In: Journal of Computer Assisted Learning, 38 (2022) 6, S.1703-1713 (11 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Pi, Zhongling) ORCID (Deng, Lixia) ORCID (Wang, Xu) ORCID (Guo, Peirong) ORCID (Xu, Tao) ORCID (Zhou, Yun)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0266-4909
DOI	10.1111/jcal.12704
Schlagwörter	Video Technology; Lecture Method; Computer Simulation; Instructional Effectiveness; Teacher Characteristics; Artificial Intelligence; Verbal Communication; Performance; Student Motivation; Attention + Suchen Sie Ihr Suchwort? Computergrafik; Computersimulation; Unterrichtserfolg; Künstliche Intelligenz; Achievement; Leistung; Schulische Motivation; Aufmerksamkeit
Abstract	Background: Video lectures which include the instructor's presence are becoming increasingly popular. Presenting a real human does, however, entail higher financial and time costs in making videos, and one innovative approach to reduce costs has been to generate a virtual speaking instructor. Objectives: The current study examined whether the use of a virtual instructor in video lectures would facilitate learning as well as a human instructor, and whether manipulating the virtual instructor's characteristics (i.e., voice and appearance) might optimize the effectiveness of the virtual instructor. Methods: Our study set four conditions. In the control condition, students watched a human instructor. In the experiment conditions, students watched one of (a) a virtual instructor which used the human instructor's voice and an AI image, (b) a virtual instructor which spoke in an AI voice with an AI image made to speak using text-to-speech and lip synthesis techniques, or (c) a virtual instructor with used an AI voice and an AI likable-image of an instructor. Results and Conclusions: The AI likable instructor condition had a significant positive effect on students' learning performance and motivation, without decreasing the attention students paid to the learning materials. Implications: Our findings suggest that instructional video designers can make use of AI voices and AI images of likable humans as instructors to motivate students and enhance their learning performance. (As Provided).
Anmerkungen	Wiley. Available from: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030. Tel: 800-835-6770; e-mail: cs-journals@wiley.com; Web site: https://www.wiley.com/en-us
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01