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Effects of presentation speed of a dynamic visualization on the understanding of a mechanical system
Author(s) -
Fischer Sebastian,
Lowe Richard K.,
Schwan Stephan
Publication year - 2008
Publication title -
applied cognitive psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.719
H-Index - 100
eISSN - 1099-0720
pISSN - 0888-4080
DOI - 10.1002/acp.1426
Subject(s) - presentation (obstetrics) , animation , cognitive psychology , computer science , psychology , human–computer interaction , visualization , artificial intelligence , computer graphics (images) , medicine , radiology
An experimental study examined temporal manipulation of presentation speed as instructional design strategy. In a between subject design, an animation of a mechanical system, a pendulum clock, was presented at either normal speed or as highly sped up version. Presentation speed was found to affect distribution of attention and understanding of the clock's functioning. Think aloud protocols were analysed for mentions of clock parts as an attention indicator, and for statements about the functions of crucial clock parts. Verbal reports from the fast condition contained more statements about the weight, which is a central part of the clocks' driving mechanism. Written descriptions of the clock produced after presentation included more correct concepts about the key components in the fast condition. For complex dynamic subject matter at least, temporal manipulation of presentation speed seems to provide instructional designers with a way to increase attention to relevant parts and thereby facilitate understanding. Copyright © 2007 John Wiley & Sons, Ltd.