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The role of retrieval practice in directed forgetting
Barbara H Basden1, David R Basden, Emily Morales
1Department of Psychology, California State University, Fresno 93740-8019, USA. barbb@csufresno.edu
Summary
Retrieval-induced forgetting does not explain directed forgetting. Experiments showed that extra retrieval practice did not increase forgetting effects, suggesting other memory mechanisms are at play.
Area of Science:
- Cognitive Psychology
- Memory Research
Background:
- Directed forgetting is a phenomenon where participants forget items from a previously studied list when instructed to forget them.
- Retrieval-induced forgetting (RIF) is a memory process where recalling some information can inhibit the recall of related information.
Purpose of the Study:
- To investigate whether retrieval-induced forgetting (RIF) underlies the list method of directed forgetting.
- To test if increased retrieval practice on a second list (List 2) enhances directed forgetting effects.
Main Methods:
- Three experiments were conducted using the list method of directed forgetting.
- Experiments 1 and 2 involved additional retrieval practice on List 2 items.
- Experiment 3 combined additional List 2 study with retrieval practice.
Main Results:
- Additional retrieval practice on List 2 did not significantly alter the magnitude of directed forgetting in any experiment.
- Neither category-related nor unrelated word lists showed increased directed forgetting with retrieval practice.
- Combined study and retrieval practice on List 2 also failed to influence directed forgetting.
Conclusions:
- Retrieval-induced forgetting (RIF) is unlikely to be the primary mechanism responsible for directed forgetting using the list method.
- Alternative explanations, such as retrieval strategy disruption or a modified dissociation hypothesis, offer more plausible accounts for the observed results.