Reevaluating the potency of the memory conformity effect.

Memory & Cognition
Glen E BodnerTanjeem Azad

Abstract

Witnesses sometimes report event details that are acquired solely from another witness. We reevaluated the potency of this memory conformity effect. After viewing a crime video, some participants learned about nonwitnessed details via discussion (dyad group), reading another participant's report (read group), or watching another version of the video (both-video group). In Experiment 1, these participants often reported nonwitnessed details, but on a source-judgment test most details were attributed primarily to the actual source rather than to the video. In addition, the dyad group was not more likely than the read or both-video groups to report nonwitnessed details. Participants in Experiment 2 were explicitly discouraged from providing details that were remembered from the secondary source only. These postwarning instructions substantially reduced the memory conformity effect, and a dyad group was not more likely than a read group to report nonwitnessed details. Encouraging source monitoring at test can reduce the negative consequences of co-witness collaboration.

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Citations

Apr 15, 2000·Risk Analysis : an Official Publication of the Society for Risk Analysis·R M Putzrath, J D Wilson
May 3, 2013·PloS One·Rebecca WheelerFiona Gabbert
Dec 16, 2010·Memory & Cognition·Daniel B Wright, Shari L Schwartz
Sep 16, 2011·Memory & Cognition·Kevin AllanFiona Gabbert
Apr 13, 2011·Psychonomic Bulletin & Review·Daniel B Wright, Marianna E Carlucci
Feb 12, 2013·Psychonomic Bulletin & Review·Sara D Davis, Michelle L Meade
Jul 19, 2014·Memory & Cognition·Katya T NumbersVladimir A Perga
Sep 17, 2011·Memory·Katherine McGuireDaniel B Wright
Apr 13, 2017·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Katja VolzWolfgang Ambach
Mar 13, 2017·Consciousness and Cognition·Michael F Wagner, John J Skowronski
Aug 4, 2018·Topics in Cognitive Science·Lorraine Hope, Fiona Gabbert
May 23, 2018·Topics in Cognitive Science·Raeya Maswood, Suparna Rajaram

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