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A model for stochastic drift in memory strength to account for judgments of learning

In English

Författare

Summary, in English

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.

Publiceringsår

2005

Språk

Engelska

Sidor

932-950

Publikation/Tidskrift/Serie

Psychological Review

Volym

112

Issue

4

Dokumenttyp

Artikel i tidskrift

Förlag

American Psychological Association (APA)

Ämne

  • Psychology (excluding Applied Psychology)

Nyckelord

  • metamemory
  • judgments of learning
  • model
  • stochastic drift

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0033-295X