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Article
Paradoxical Effects of Testing: Retrieval Enhances Both Accurate Recall and Suggestibility in Eyewitnesses
Journal of Experimental Psychology: Learning, Memory, and Cognition
  • Jason C.K. Chan, Iowa State University
  • Moses M. Langley, University of Wisconsin - Parkside
Document Type
Article
Disciplines
Publication Date
1-1-2011
DOI
10.1037/a0021204
Abstract

Although retrieval practice typically enhances memory retention, it can also impair subsequent eyewitness memory accuracy (Chan, Thomas, & Bulevich, 2009). Specifically, participants who had taken an initial test about a witnessed event were more likely than nontested participants to recall subsequently encountered misinformation—an effect we called retrieval-enhanced suggestibility (RES). Here, we sought to test the generality of RES and to further elucidate its underlying mechanisms. To that end, we tested a dual mechanism account, which suggests that RES occurs because initial testing (a) enhances learning of the later misinformation by reducing proactive interference and (b) causes the reactivated memory trace to be more susceptible to later interference (i.e., a reconsolidation account). Three major findings emerged. First, RES was found after a 1-week delay, where a robust testing benefit occurred for event details that were not contradicted by later misinformation. Second, blockage of reconsolidation was unnecessary for RES to occur. Third, initial testing enhanced learning of the misinformation even when proactive interference played a minimal role. (PsycINFO Database Record (c) 2012 APA, all rights reserved)

Comments

This is a manuscript of an article from Journal of Experimental Psychology: Learning, Memory, and Cognition 37 (2011):248, doi:10.1037/a0021204. Posted with permission. This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.

Copyright Owner
Chan, et al.
Language
en
Date Available
2015-01-23
File Format
application/pdf
Citation Information
Jason C.K. Chan and Moses M. Langley. "Paradoxical Effects of Testing: Retrieval Enhances Both Accurate Recall and Suggestibility in Eyewitnesses" Journal of Experimental Psychology: Learning, Memory, and Cognition Vol. 37 Iss. 1 (2011) p. 248 - 255
Available at: http://works.bepress.com/jason_chan/17/