Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Groupthink01:34

Groupthink

When in group settings, we are often influenced by the thoughts, feelings, and behaviors around us. Groupthink is another phenomenon of conformity where modification of the opinions of members in a group aligns with what they believe is the group consensus (Janis, 1972). In such situations, the group often takes action that individuals would not perform outside the group setting because groups make more extreme decisions than individuals do. Moreover, groupthink can hinder opposing trains of...
Decision Making: Traditional Method01:14

Decision Making: Traditional Method

The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
Decision Making: P-value Method01:09

Decision Making: P-value Method

The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can have a...
Group Polarization01:01

Group Polarization

Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
Decision Making01:20

Decision Making

Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Robbers Cave04:49

Robbers Cave

During the 1950s, the landmark Robbers Cave experiment demonstrated that when groups must compete with one another, intergroup conflict, hostility, and even violence may result. At the Oklahoman summer camp, two troops of boys—termed the Rattlers and the Eagles—took part in a week-long tournament. During this time, their negativity culminated in derogatory name-calling, fistfights, and even vandalism and destruction of property. However, this work also revealed that such tension could be...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Non-verbal cues in eyewitness testimonies do not predict accuracy or credibility assessments.

Scientific reports·2025
Same author

Correction: Eyewitness accuracy and retrieval effort: Effects of time and repetition.

PloS one·2024
Same author

The semantic structure of accuracy in eyewitness testimony.

Frontiers in psychology·2024
Same author

Airborne SARS-CoV2 virus exposure, interpersonal distance, face mask and perceived risk of infection.

Scientific reports·2024
Same author

Memory accuracy, suggestibility and credibility in investigative interviews with native and non-native eyewitnesses.

Frontiers in psychology·2023
Same author

Correction to: 'Sex differences in human mate preferences vary across sex ratios' (2023) by Walter <i>et al.</i>

Proceedings. Biological sciences·2023

Related Experiment Video

Updated: Jun 3, 2026

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
06:18

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

Published on: October 20, 2022

Post-decision consolidation in large group decision-making.

Emma A Bäck1, Peter Esaiasson, Mikael Gilljam

  • 1Department of Psychology, Stockholm University, Sweden.

Scandinavian Journal of Psychology
|March 16, 2011
PubMed
Summary
This summary is machine-generated.

After group decisions, individuals enhance their preferred choices. This decision consolidation effect is stronger with in-group authority and high school identification.

Related Experiment Videos

Last Updated: Jun 3, 2026

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
06:18

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm

Published on: October 20, 2022

Area of Science:

  • Social Psychology
  • Group Decision-Making
  • Cognitive Bias

Background:

  • Post-decision justification is a known cognitive bias where individuals increase the attractiveness of their chosen option.
  • Research has primarily focused on individual decision-making, with less attention on its occurrence within large group contexts.

Purpose of the Study:

  • To investigate decision consolidation in large group decision-making among high-school students.
  • To examine how decision-making authority (in-group vs. out-group) and group identification influence this effect.

Main Methods:

  • Two experiments were conducted with high-school students facing a school-related decision scenario.
  • Decisions were finalized through in-group authority, out-group authority, or majority vote.
  • Attractiveness ratings of decision alternatives were measured before and after the decision was made.

Main Results:

  • Individual group members exhibited decision consolidation, enhancing their preferred alternative's attractiveness post-decision.
  • Consolidation effects were significantly stronger when decisions were made by an in-group authority.
  • Higher levels of school identification correlated with increased decision consolidation.

Conclusions:

  • Decision consolidation extends to large group settings, influencing individual perceptions post-decision.
  • Group dynamics, particularly the source of authority and member identification, moderate this cognitive bias.
  • Findings offer insights into group behavior, intergroup relations, and the psychology of collective decision-making.