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Investigating the effects of beat and deictic gestures of a lecturer in educational videos

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journal contribution
posted on 2020-07-10, 16:03 authored by Maik Beege, Manuel Ninaus, Sascha Schneider, Steve Nebel, Julia Schlemmel, Jasmin Weidenmüller, Korbinian MoellerKorbinian Moeller, Günter Daniel Rey
Lecturers in educational videos often use gestures to emphasize what has been said or highlight learning relevant information, which is visible on the screen. However, differences in types of lecturer gestures, such as rhythmic (beat) gestures and signaling (deictic) gestures, have not been investigated thoroughly yet concerning human lecturers in educational videos. In two experiments (N1 = 108; N2 = 121), participants received an educational video about weather phenomena (Experiment 1) or the industrial revolution (Experiment 2). Videos were manipulated in terms of the type of lecturer's gestures in the video (beat gestures vs. deictic gestures vs. no gestures). Learning outcomes, mental load and effort, parasocial interaction, social presence, affective rating, and agent-persona perception (Experiment 2) were measured. Results indicated a significant effect of gestures on retention performance in both experiments. In line with the signaling principle, deictic gestures enhanced learning outcomes. In contrast, beat gestures did not foster learning in comparison with a video without gestures. These results are interpreted considering lower mental load, higher social presence, and parasocial interaction in the signaling condition. In particular, attention towards the lecturer was significantly enhanced in the condition with deictic gestures in both experiments.

History

School

  • Science

Department

  • Mathematics Education Centre

Published in

Computers & Education

Volume

156

Publisher

Elsevier

Version

  • AM (Accepted Manuscript)

Rights holder

© Elsevier Ltd.

Publisher statement

This paper was accepted for publication in the journal Computers & Education and the definitive published version is available at https://doi.org/10.1016/j.compedu.2020.103955.

Acceptance date

2020-06-10

Publication date

2020-06-16

Copyright date

2020

ISSN

0360-1315

Language

  • en

Depositor

Prof Korbinian Moeller. Deposit date: 9 July 2020

Article number

103955

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