A model for stochastic drift in memory strength to account for judgments of learning
Sikström, Sverker LU
and Jonsson, F
(2005)
In Psychological Review
112(4).
p.932-950
- Abstract
- Previous research has shown that judgments of learning (JOLs) made immediately after encoding have a low correlation with actual cued-recall performance, whereas the correlation is high for delayed,judgments. In this article, the authors propose a formal theory describing the stochastic drift of memory strength over the retention interval to account for the delayed-JOL effect. This is done by first decomposing the aggregated memory strength into exponential functions with slow and fast memory traces. The mean aggregated memory strength shows power-function forgetting curves. The drift of the memory strength is large for immediate JOLs (causing a low predictability) and weak for delayed JOLs (causing a high predictability). Consistent with... (More)
- Previous research has shown that judgments of learning (JOLs) made immediately after encoding have a low correlation with actual cued-recall performance, whereas the correlation is high for delayed,judgments. In this article, the authors propose a formal theory describing the stochastic drift of memory strength over the retention interval to account for the delayed-JOL effect. This is done by first decomposing the aggregated memory strength into exponential functions with slow and fast memory traces. The mean aggregated memory strength shows power-function forgetting curves. The drift of the memory strength is large for immediate JOLs (causing a low predictability) and weak for delayed JOLs (causing a high predictability). Consistent with empirical data, the model makes a novel prediction of JOL asymmetry, or that immediate weak JOLs are more predictive of future performance than are immediate strong JOLs. The JOL distributions for immediate and delayed JOLs are also accounted for. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/212543
- author
- Sikström, Sverker
LU
and Jonsson, F
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- metamemory, judgments of learning, model, stochastic drift
- in
- Psychological Review
- volume
- 112
- issue
- 4
- pages
- 932 - 950
- publisher
- American Psychological Association (APA)
- external identifiers
-
- wos:000233222000009
- pmid:16262474
- scopus:27944483811
- ISSN
- 0033-295X
- DOI
- 10.1037/0033-295X.112.4.932
- language
- English
- LU publication?
- yes
- id
- 17daf8ee-dd9f-4a27-b2e2-212bb577a3a2 (old id 212543)
- date added to LUP
- 2016-04-01 15:33:43
- date last changed
- 2022-04-14 22:46:09
@article{17daf8ee-dd9f-4a27-b2e2-212bb577a3a2,
abstract = {{Previous research has shown that judgments of learning (JOLs) made immediately after encoding have a low correlation with actual cued-recall performance, whereas the correlation is high for delayed,judgments. In this article, the authors propose a formal theory describing the stochastic drift of memory strength over the retention interval to account for the delayed-JOL effect. This is done by first decomposing the aggregated memory strength into exponential functions with slow and fast memory traces. The mean aggregated memory strength shows power-function forgetting curves. The drift of the memory strength is large for immediate JOLs (causing a low predictability) and weak for delayed JOLs (causing a high predictability). Consistent with empirical data, the model makes a novel prediction of JOL asymmetry, or that immediate weak JOLs are more predictive of future performance than are immediate strong JOLs. The JOL distributions for immediate and delayed JOLs are also accounted for.}},
author = {{Sikström, Sverker and Jonsson, F}},
issn = {{0033-295X}},
keywords = {{metamemory; judgments of learning; model; stochastic drift}},
language = {{eng}},
number = {{4}},
pages = {{932--950}},
publisher = {{American Psychological Association (APA)}},
series = {{Psychological Review}},
title = {{A model for stochastic drift in memory strength to account for judgments of learning}},
url = {{http://dx.doi.org/10.1037/0033-295X.112.4.932}},
doi = {{10.1037/0033-295X.112.4.932}},
volume = {{112}},
year = {{2005}},
}