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Abstract
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.
Recommended Reading
| Bjork, R.A. (1979). (See References) Google Scholar | |
| McDaniel, M.A., Roediger, H.L., McDermott, K.B. (2007). Generalizing test-enhanced learning from the laboratory to the classroom. Psychonomic Bulletin & Review, 14, 200–206. Google Scholar | Crossref | Medline | ISI | |
| Metcalfe, J., Kornell, N, Son, L.K. (in press). A cognitive-science based program to enhance study efficacy in a high- and low-risk setting. European Journal of Cognitive Psychology. Google Scholar | |
| Pashler, H., Rohrer, D., Cepeda, N.J., Carpenter, S.K. (2007). (See References) Google Scholar |
REFERENCES
| Bahrick, H.P. (1979). Maintenance of knowledge: Questions about memory we forgot to ask. Journal of Experimental Psychology: General, 108, 296–308. Google Scholar | Crossref | ISI | |
| Bjork, R.A. (1979). Information-processing analysis of college teaching. Educational Psychologist, 14, 15–23. Google Scholar | Crossref | |
| Cepeda, N.J., Mozer, M.C., Coburn, N., Rohrer, D., Wixted, J.T., Pashler, H. (2007). Optimizing distributed practice: Theoretical analysis and practical implications. Unpublished manuscript. Google Scholar | |
| Cepeda, N.J., Pashler, H., Vul, E., Wixted, J.T., Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132, 354–380. Google Scholar | Crossref | Medline | ISI | |
| Crowder, R.G. (1976). Principles of learning and memory. Hillsdale, NJ: Erlbaum. Google Scholar | |
| Dempster, F.N. (1989). Spacing effects and their implications for theory and practice. Educational Psychology Review, 1, 309–330. Google Scholar | Crossref | ISI | |
| Driskell, J.E., Willis, R.P., Copper, C. (1992). Effect of overlearning on retention. Journal of Applied Psychology, 77, 615–622. Google Scholar | Crossref | ISI | |
| National Geographic . (2006). 2006 Geographic Literacy Study. Washington, DC: National Geographic Society. Google Scholar | |
| Pashler, H., Cepeda, N.J., Wixted, J.T., Rohrer, D. (2005). When does feedback facilitate learning of words?Journal of Experimental Psychology: Learning, Memory, and Cognition, 31, 3–8. Google Scholar | Crossref | Medline | ISI | |
| Pashler, H., Rohrer, D., Cepeda, N.J., Carpenter, S.K. (2007). Enhancing learning and retarding forgetting: Choices and consequences. Psychonomic Bulletin & Review, 14, 187–193. Google Scholar | Crossref | Medline | ISI | |
| Reese, C.M., Miller, K.E., Mazzeo, J., Dossey, J.A. (1997). NAEP 1996 Mathematics Report Card for the Nation and the States. Washington, DC: National Center for Education Statistics. Google Scholar | |
| Roediger, H.L., Karpicke, J.D. (2006). The power of testing memory: Basic research and implications for educational practice. Perspectives on Psychological Science, 1, 181–210. Google Scholar | SAGE Journals | ISI | |
| Rohrer, D., Taylor, K. (2006). The effects of overlearning and distributed practice on the retention of mathematics knowledge. Applied Cognitive Psychology, 20, 1209–1224. Google Scholar | Crossref | ISI | |
| Rohrer, D., Taylor, K. (in press)The shuffling of mathematics problems improves learning. Instructional Science. Google Scholar | ISI | |
| Rohrer, D., Taylor, K., Pashler, H., Wixted, J.T, Cepeda, N.J. (2005). The effect of overlearning on long-term retention. Applied Cognitive Psychology, 19, 361–374. Google Scholar | Crossref | ISI |
