Engaging Students in Online Video Lectures with Dynamically Scaffolding Conversational Agents

Item Type Conference or Workshop Item (Paper)
Abstract

Enrollment in online courses has sharply increased in higher education. Although online education can be scaled to large audiences, the lack of interaction between educators and learners is difficult to replace and remains a primary challenge in the field. Conversational agents may alleviate this problem by engaging in natural interaction and by scaffolding learners’ understanding similarly to educators. However, whether this approach can also be used to enrich online video lectures has largely remained unknown. We developed Sara, a conversational agent that appears during an online video lecture. She provides scaffolds by voice and text when needed and includes a voice-based input mode. An evaluation with 182 learners in a 2 x 2 lab experiment demonstrated that Sara, compared to more traditional conversational agents, significantly improved learning in a programming task. This study highlights the importance of including scaffolding and voice-based conversational agents in online videos to improve meaningful learning.

Authors Winkler, Rainer; Hobert, Sebastian; Salovaara, Antti; Söllner, Matthias & Leimeister, Jan Marco
Research Team IWI6
Language English
Keywords Conversational agent, experiment, interactivity, online education, online videos, scaffolding, voice interaction
Subjects information management
HSG Classification contribution to scientific community
Date 2020
Event Title CHI Computer Human Interaction Conference
Event Location Honolulu, Hawaii
Event Dates 25.04.2020 - 30.04.2020
Depositing User Mahei Li
Date Deposited 28 Oct 2020 12:42
Last Modified 14 Dec 2020 19:28
URI: https://www.alexandria.unisg.ch/publications/261300

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Citation

Winkler, Rainer; Hobert, Sebastian; Salovaara, Antti; Söllner, Matthias & Leimeister, Jan Marco: Engaging Students in Online Video Lectures with Dynamically Scaffolding Conversational Agents. 2020. - CHI Computer Human Interaction Conference. - Honolulu, Hawaii.

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https://www.alexandria.unisg.ch/id/eprint/261300
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