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Revising current two-process accounts of spacing effects in memory
R Russo1, A J Parkin, S R Taylor
1Department of Psychology, University of Essex, Colchester, United Kingdom. rrusso@essex.ac.uk
Journal of Experimental Psychology. Learning, Memory, and Cognition
|January 24, 1998
Summary
Spacing repeated items during study enhances memory recall. Divided attention impacts this spacing effect differently across memory tasks, challenging existing theories.
Area of Science:
- Cognitive Psychology
- Human Memory
- Learning Sciences
Background:
- The spacing effect, where memory improves with spaced repetitions, is a well-established phenomenon in learning.
- Existing theories often struggle to explain the full range of conditions under which spacing effects manifest.
Purpose of the Study:
- To investigate how attentional states (focused vs. divided) modulate the spacing effect in memory.
- To examine the spacing effect across different memory tasks (free recall, recognition) and study types (intentional, incidental).
Main Methods:
- Experiments involved studying words and faces under focused or divided attention.
- Retention was assessed using free recall and yes-no recognition tests.
- Both intentional and incidental learning conditions were employed.
Main Results:
- Divided attention eliminated the spacing effect in recognition but not in free recall for words.
- Spacing effects for recognition memory persisted under divided attention for semantic (words) and structural (faces) incidental learning.
- A reliable spacing effect was observed across intentional and incidental learning conditions for face recognition.
Conclusions:
- Current theories of spacing effects are insufficient to account for the observed data.
- Attentional demands interact with memory task type to influence the spacing effect.
- The findings necessitate a revised theoretical framework for understanding memory spacing.