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Comprehension of an audio versus an audiovisual lecture at 50% time-compression
Title
Comprehension of an audio versus an audiovisual lecture at 50% time-compression.
Creator
Perez, Nicole, Barenholtz, Elan, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
Abstract/Description
Since students can adjust the speed of online videos by time-compression which is available through common software (Pastore & Ritzhaupt, 2015), it is important to learn at which point compression impacts comprehension. The focus of the study is whether the speaker’s face benefits comprehension during a 50% compressed lecture. Participants listened to a normal lecture or a 50% compressed lecture. Each participant saw an audio and audiovisual lecture, and were eye tracked during the...
Show moreSince students can adjust the speed of online videos by time-compression which is available through common software (Pastore & Ritzhaupt, 2015), it is important to learn at which point compression impacts comprehension. The focus of the study is whether the speaker’s face benefits comprehension during a 50% compressed lecture. Participants listened to a normal lecture or a 50% compressed lecture. Each participant saw an audio and audiovisual lecture, and were eye tracked during the audiovisual lecture. A comprehension test revealed that participants in the compressed lecture group performed better with the face. Eye fixations revealed that participants in the compressed lecture group looked less at the eyes and more at the nose when compared to eye fixations for those that viewed the normal lecture. This study demonstrates that 50% compression affects eye fixations and that the face benefits the listener, but this much compression will still lessen comprehension.
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Date Issued
2017
PURL
http://purl.flvc.org/fau/fd/FA00004847, http://purl.flvc.org/fau/fd/FA00004847
Subject Headings
Learning--Case studies., Perceptual-motor learning., Nonverbal communication., Internet videos--Education.
Format
Document (PDF)