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Impact of Groups on Groups01:19

Impact of Groups on Groups

Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
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Groups play a fundamental role in shaping individual behavior, as they establish norms that guide interactions and decision-making. Social psychology examines how individuals conform to group expectations, often adjusting their attitudes and actions to align with group norms. These norms can be formal, such as workplace policies, or informal, such as unspoken social expectations within a fraternity.Conformity and Social InfluenceConformity arises when individuals modify their behaviors or...
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The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...
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Related Experiment Video

Updated: Jun 8, 2026

Group Synchronization During Collaborative Drawing Using Functional Near-Infrared Spectroscopy
07:53

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Published on: August 5, 2022

Exploring asynchronous brainstorming in large groups: a field comparison of serial and parallel subgroups.

Gert-Jan de Vreede1, Robert O Briggs, Roni Reiter-Palmon

  • 1Center for Collaboration Science, University of Nebraska at Omaha, Omaha, NE 68182, USA. gdevreede@unomaha.edu

Human Factors
|October 15, 2010
PubMed
Summary

Comparing group collaboration strategies, serial modes yield deeper elaboration, while parallel modes generate more unique ideas. The optimal approach depends on the specific task requirements for problem-solving.

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Area of Science:

  • Organizational psychology
  • Group dynamics
  • Collaborative problem-solving

Background:

  • Complex organizational challenges necessitate large-scale collaborations.
  • Logistical hurdles in managing large groups, such as synchronous meeting coordination, are significant.

Purpose of the Study:

  • To compare the efficacy of two distinct group structuring methods for problem identification and solution development.
  • To evaluate productivity and satisfaction in parallel versus serial group configurations.

Main Methods:

  • A field study was conducted across two organizations.
  • Productivity and satisfaction were compared between two group modes: parallel (independent groups completing the entire process) and serial (subgroups building sequentially).

Main Results:

  • Serial groups demonstrated superior elaboration compared to parallel groups.
  • Parallel groups generated a higher number of unique ideas than serial groups.
  • No significant differences in satisfaction with the process or outcomes were observed between the two modes.

Conclusions:

  • The choice between parallel and serial group modes should align with task objectives.
  • Parallel modes are advantageous for idea generation requiring novelty.
  • Serial modes are optimal for tasks demanding in-depth elaboration and detailed solution refinement.
  • Findings inform the facilitation of large-scale group sessions and 'teams of teams'.