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Structured Groups Make More Accurate Veracity Judgments Than Individuals

Hamlin, Iain; Bolger, Fergus; Vasilichi, Alexandrina; Belton, Ian; Crawford, Megan M; Sissons, Aileen; Taylor Browne L?ka, Courtney; Wright, George


Iain Hamlin

Fergus Bolger

Alexandrina Vasilichi

Ian Belton

Aileen Sissons

Courtney Taylor Browne L?ka

George Wright


Groups often make better judgments than individuals, and recent research suggests that this phenomenon extends to the deception detection domain. The present research investigated whether the influence of groups enhances the accuracy of judgments, and whether group size influences deception detection accuracy. 250 participants evaluated written statements with a pre-established detection accuracy rate of 60% in terms of veracity before viewing either the judgments and rationales of several other group members or a short summary of the written statement and revising or restating their own judgments accordingly. Participants’ second responses were significantly more accurate than their first, suggesting a small positive effect of structured groups on deception detection accuracy. Group size did not have a significant effect on detection accuracy. The present work extends our understanding of the utility of group deception detection, suggesting that asynchronous, structured groups outperform individuals at detecting deception.


Hamlin, I., Bolger, F., Vasilichi, A., Belton, I., Crawford, M. M., Sissons, A., …Wright, G. (2021). Structured Groups Make More Accurate Veracity Judgments Than Individuals. Applied Cognitive Psychology, 35(6), 1600-1607.

Journal Article Type Article
Acceptance Date Oct 21, 2021
Online Publication Date Oct 27, 2021
Publication Date 2021-12
Deposit Date Oct 25, 2021
Publicly Available Date Oct 28, 2022
Journal Applied Cognitive Psychology
Print ISSN 0888-4080
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 35
Issue 6
Pages 1600-1607
Keywords deception detection; group decision making; written cues; virtual groups; group size
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Structured Groups Make More Accurate Veracity Judgments Than Individuals (accepted version) (247 Kb)

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