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Increasing Retention Without Increasing Study Time
Open accessAbstract
Because people forget much of what they learn, students could benefit from learning strategies that yield long-lasting knowledge. Yet surprisingly little is known about how long-term retention is most efficiently achieved. Here we examine how retention is affected by two variables: the duration of a study session and the temporal distribution of study time across multiple sessions. Our results suggest that a single session devoted to the study of some material should continue long enough to ensure that mastery is achieved but that immediate further study of the same material is an inefficient use of time. Our data also show that the benefit of distributing a fixed amount of study time across two study sessions—the spacing effect—depends jointly on the interval between study sessions and the interval between study and test. We discuss the practical implications of both findings, especially in regard to mathematics learning.
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“The optimal ratio of spacing and retention interval should be 10-30%.”
From MASSED TASK REPETITION IS A DOUBLE-EDGED SWORD FOR FLUENCY DEVELOPMENT: AN EFL CLASSROOM STUDY (2022) · cites this paper as Rohrer & Pashler, 2007
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“According to cognitive psychologists (Cepeda et al., 2008;Rohrer & Pashler, 2007), the optimal spacing depends on the retention interval (i.e., the timing of delayed posttest).”
From MASSED TASK REPETITION IS A DOUBLE-EDGED SWORD FOR FLUENCY DEVELOPMENT: AN EFL CLASSROOM STUDY (2022) · cites this paper as Rohrer & Pashler, 2007
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Metadata
- Authors
- Rohrer, D., & Pashler, H.
- Affiliations
- University of South Florida (US)
- University of California San Diego (US)
- Corresponding author
- Rohrer, Doug
- Venue
- Current Directions in Psychological Science
- Publisher
- SAGE Publications
- Published
- 2007-08
- Volume
- 16
- Issue
- 4
- Pages
- 183-186
- ISSN
- 0963-7214 (ISSN-L)
- 1467-8721
- OpenAlex
- W2044983254
- Cited by
- 153
- References
- 19
- Citations by year
- 2026: 4 · 2025: 7 · 2024: 10 · 2023: 11 · 2022: 6 · 2021: 11 · 2020: 11 · 2019: 11 · 2018: 9 · 2017: 7 · 2016: 9 · 2015: 14 · 2014: 6 · 2013: 8 · 2012: 6
- FWCI
- 2.50
- Type
- journal article
- Language
- en
- Open access
- green
- www.escholarship.org
- Locations
- Current Directions in Psychological Science (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- Digital Commons - University of South Florida (University of South Florida) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Visual and Cognitive Learning Processes
- Social Sciences › Psychology › Developmental and Educational Psychology › Innovative Teaching and Learning Methods
- Keywords
- long-term retention, spacing effect, forgetting, mastery, mathematics learning, learning strategies
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