Learning efficacy of simultaneous audio and on-screen text in online lectures

Justin Debuse; Andrew Hede; Meredith A Lawley

doi:10.14742/ajet.1119

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Learning efficacy of simultaneous audio and on-screen text in online lectures

Journal article

Open access

Peer reviewed

Learning efficacy of simultaneous audio and on-screen text in online lectures

Justin Debuse, Andrew Hede and Meredith A Lawley

Australasian Journal of Educational Technology, Vol.25(5), pp.748-762

2009

DOI: https://doi.org/10.14742/ajet.1119

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Abstract

online learning

multimedia effects on learning

This study investigates the application of voice recognition technology to online lectures focusing on the efficacy of the text component of a multimedia presentation. Specifically, participants were provided with online access to multimedia instructional packages comprising an image of the lecturer with accompanying computer slides, plus simultaneous scrolling text of the words spoken during the lecture. Participants' knowledge was measured before and after the lecture presentation. Contrary to cognitive load theory, the results did not show a negative redundancy effect, that is, there were no differences in learning efficacy between the conditions with and without on-screen text. Further, participants found no difference between text edited for semantic breaks compared to unedited text. The implications for online instructional design are that resources are better spent providing a combination of audio and slides rather than text and slides, and that if text is provided then editing for semantic line breaks is not warranted.

Details

Title: Learning efficacy of simultaneous audio and on-screen text in online lectures
Authors: Justin Debuse (Author) - University of the Sunshine Coast - Faculty of Business
Andrew Hede (Author) - University of the Sunshine Coast - Faculty of Business
Meredith A Lawley (Author) - University of the Sunshine Coast - Faculty of Business
Publication details: Australasian Journal of Educational Technology, Vol.25(5), pp.748-762
Publisher: Australasian Society for Computers in Learning in Tertiary Education (A S C I L I T E)
Date published: 2009
DOI: 10.14742/ajet.1119
ISSN: 1449-3098
Organisation Unit: School of Business and Creative Industries; University of the Sunshine Coast, Queensland; USC Business School - Legacy
Language: English
Record Identifier: 99450397502621
Output Type: Journal article

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