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Published on: June 14, 2019
Distributed practice in verbal recall tasks: A review and quantitative synthesis
Nicholas J Cepeda1, Harold Pashler, Edward Vul
1Department of Psychology, University of California, San Diego, CA, USA. ncepeda@psy.ucsd.edu
Psychological Bulletin
|May 25, 2006
Summary
Distributed practice enhances learning by spacing study sessions. Optimal learning occurs when the study interval increases with the retention interval, improving memory recall.
Area of Science:
- Cognitive Psychology
- Educational Psychology
- Learning Sciences
Background:
- The distributed practice effect is crucial for learning and memory.
- Previous reviews have overlooked the impact of temporal variables on this effect.
- Understanding spacing and lag effects is vital for optimizing learning strategies.
Purpose of the Study:
- To conduct a meta-analysis of the distributed practice effect.
- To investigate the influence of temporal variables like spacing and lag.
- To examine the relationship between interstudy interval (ISI) and retention interval.
Main Methods:
- A meta-analysis of 839 assessments from 317 experiments across 184 articles.
- Examination of spacing (massed vs. spaced learning episodes).
- Analysis of lag (less spaced vs. more spaced learning episodes) and expanding interstudy interval (ISI) effects.
Main Results:
- The interstudy interval (ISI) and retention interval jointly influence final-test retention.
- The optimal ISI for maximal retention increases as the retention interval grows.
- Distributed practice effects are modulated by specific temporal parameters.
Conclusions:
- Temporal variables significantly impact the distributed practice effect.
- Future research should explore these temporal dynamics further.
- Theoretical implications for learning and memory models are discussed.
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