Cited by 390Team Dynamics and PerformanceSocial and Intergroup PsychologyCognitive Abilities and Testing

Groups perform better than the best individuals on letters-to-numbers problems: Effects of group size.

Laughlin, Patrick R., Hatch, Erin C., Silver, Jonathan S., Boh, Lee·2006·Journal of Personality and Social Psychology

Abstract

Individuals and groups of 2, 3, 4, or 5 people solved 2 letters-to-numbers problems that required participants, on each trial, to identify the coding of 10 letters to 10 numbers by proposing an equation in letters, receiving the answer in letters, proposing a hypothesis, and receiving feedback on the correctness of the hypothesis. Groups of 3, 4, and 5 people proposed more complex equations and had fewer trials to solution than the best of an equivalent number of individuals. Groups of 3, 4, and 5 people had fewer trials to solution than 2-person groups but did not differ from each other. These results suggest that 3-person groups are necessary and sufficient to perform better than the best individuals on highly intellective problems.

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Crossref · 10.1037/0022-3514.90.4.644

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  • Group learning is superior to individual learning for relatively complex problem-solving tasks.

    “These findings are consistent with previous research on group versus individual learning which showed that group learning is superior to individual learning for relatively complex problem-solving tasks (Laughlin et al. 2002;Laughlin et al. 2006) and that individual learning is superior to group learning for relatively simple recall tasks (e.g., Andersson and Rönnberg 1995;Meudell et al. 1992;Weld”

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Authors
Laughlin, P. R., Hatch, E. C., Silver, J. S., & Boh, L.
Affiliations
University of Illinois Urbana-Champaign (US)
Venue
Journal of Personality and Social Psychology
Published
2006
Volume
90
Issue
4
Pages
644-651
ISSN
  • 0022-3514 (ISSN-L)
  • 1939-1315
OpenAlex
W2125970110
Cited by
390
References
47
Citations by year
2026: 10 · 2025: 22 · 2024: 20 · 2023: 46 · 2022: 14 · 2021: 19 · 2020: 25 · 2019: 35 · 2018: 26 · 2017: 15 · 2016: 12 · 2015: 23 · 2014: 21 · 2013: 16 · 2012: 20
FWCI
13.83
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Personality and Social Psychology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Social Psychology › Team Dynamics and Performance
  • Social Sciences › Sociology and Political Science › Social and Intergroup Psychology
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
Keywords
group problem solving, group size, hypothesis testing, feedback, group versus individual performance
MeSH terms
Analysis of Variance, Cooperative Behavior, Group Processes, Humans, Illinois, Problem Solving

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