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Video speeding can be efficient and speeding-induced preference cost can be lessened by selective speeding
Anna M Wright1, Kelly E Carter1, Sarah A Bibyk2
1Department of Psychology and Human Development.
Journal of Experimental Psychology. Applied
|August 25, 2022
Summary
Speeding up instructional videos improves learning efficiency up to 200% with minimal learning impact. However, selective speeding on pauses and slow speech enhances viewer preference while maintaining time efficiency.
Area of Science:
- Educational Technology
- Cognitive Psychology
Background:
- Screen-captured instructional videos are widely used for learning.
- Video playback speed can be increased for efficiency, but its impact on learning and user experience is not fully understood.
Purpose of the Study:
- To investigate the effects of increased video playback speed on learning, perceived workload, and viewer preferences.
- To explore methods for optimizing speeded videos to enhance efficiency without compromising user experience.
Main Methods:
- Created screen-captured instructional videos and tested playback speeds up to 250%.
- Assessed learning outcomes, perceived workload, and viewer preferences.
- Developed and evaluated selectively speeded videos, focusing on pauses and non-critical content.
Main Results:
- Playback speeds up to 200% had minimal impact on learning.
- A 150% speed increase significantly raised perceived workload and lowered viewer preferences.
- Selectively speeded videos were as time-efficient as uniformly speeded videos but were preferred by viewers.
Conclusions:
- Speeded instructional videos can enhance learning efficiency.
- Selective speeding techniques can mitigate negative impacts on workload and preference, suggesting a way to optimize video-based learning.
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