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Related Experiment Video

Updated: Jun 27, 2026

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory
07:26

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory

Published on: January 31, 2017

False and veridical collaborative recognition.

Craig Thorley1, Stephen A Dewhurst

  • 1Department of Social and Psychological Sciences, Edge Hill University, Ormskirk, UK. craig.thorley@edgehill.ac.uk

Memory (Hove, England)
|December 6, 2008
PubMed
Summary
This summary is machine-generated.

Collaborative memory recall, using Deese-Roediger-McDermott (DRM) word lists, improved recognition of studied words and critical lures. Group size and collaboration enhanced memory accuracy, even in later individual tests.

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Area of Science:

  • Cognitive Psychology
  • Social Psychology
  • Memory Studies

Background:

  • The Deese-Roediger-McDermott (DRM) paradigm is a widely used paradigm to study false memory.
  • Group dynamics can influence individual and collective memory recall.

Purpose of the Study:

  • To investigate the effect of collaborative recall on recognition memory for studied words and critical lures within the DRM paradigm.
  • To compare the performance of collaborative groups with equivalent-sized nominal groups.

Main Methods:

  • Participants studied DRM word lists and were then tested individually or in collaborative groups (pairs, trios, quartets).
  • Recognition tests assessed the recall of studied words and non-studied critical lures.
  • Performance of collaborative groups was compared to nominal groups of similar size.

Main Results:

  • Recognition of both studied words and critical lures increased with group size, with the greatest gains observed in collaborative groups.
  • Collaborative groups demonstrated facilitated recognition by lowering response criterion thresholds for semantically related words.
  • Prior collaborative experiences positively influenced subsequent individual recognition memory.

Conclusions:

  • Collaboration enhances memory recognition, particularly for critical lures, by influencing response criteria and potentially creating shared memory illusions.
  • The belief that collaboratively recognized items were studied leads to their repeated endorsement in subsequent individual tests, highlighting the impact of social influence on memory.