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What Is the Ringelmann Effect?

Mary McMahon
Updated Mar 03, 2024
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The Ringelmann effect is a phenomenon seen in groups where individual participants in the group tend to decrease effort and coordination on projects. This has important implications for the study of group dynamics, especially for activities like sports, where effort of individual group members is key to the success of the team as a whole. Social psychologists study this and other topics through observations of groups, carefully designed experiments, and retroactive evaluation of group performance. This concept is often discussed in introductory psychology classes, especially social or group psychology courses.

The phenomenon is named for Maximilien Ringelmann, a researcher who developed a theory in conjunction with an experiment where participants were asked to pull a rope so he could measure the force they exerted. He found that in larger groups, individual effort declined, exerting less combined force. Ringelmann theorized that individual efforts were declining, and that the group members also had trouble coordinating to make their effort work.

Research into the Ringelmann effect has shown that perceived levels of effort on the part of other group members also play a role. When researchers added some assistants to a replica of the experiment and directed their assistants to act like they were engaging in heavy effort when they actually weren't, force exerted by other members of the group declined. The harder the assistants appeared to work, the more markedly the Ringelmann effect developed.

In sports and other team activities where members of a group need to work together to accomplish a common goal, social loafing like the Ringelmann effect can be a serious problem. Overall average effort per individual can tend to go down, even as some members of the group may work harder to make up for their slacking companions. Social scientists have an interest in learning how this behavior develops and how to combat it in real-world applications where it can be critical to get members of a group to give more effort to a task.

Numerous experiments can demonstrate the Ringelmann effect and test its limits. Researchers can design a variety of experiments to explore various aspects of this phenomenon. Whenever an experiment involves human subjects, it needs to be evaluated by an ethics committee, which can determine whether the experiment adds to the body of knowledge on the subject, adequately protects the welfare of participants, and is clearly well-designed and organized. The committee may reject the experiment as designed and request revisions to the proposal.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a The Health Board researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments
By burcinc — On Dec 23, 2012

This is interesting. I'm sure learning about the Ringelmann effect and ways to work around it would be very helpful to employers.

We also have social loafing in teams at my workplace. It really makes things hard for supervisors and managers.

By burcidi — On Dec 22, 2012

Have social scientists studied the role of leadership on the Ringelmann effect?

I participate in a lot of sports at school, so I understand the importance of teamwork. I think if a team isn't working well or if people are reducing their effort, it has to do with the team leader.

If the team leader is strong and knows how to bring the team together and knows how to encourage them, people will work harder. If individual players feel that they have something important to add to the game, they will go all out. Otherwise, they won't have the enthusiasm.

So I think social scientists should think about leadership as well.

By SarahGen — On Dec 21, 2012

I think social loafing in teams is normal. I do this all the time. The way I see it, if I'm in a group, I shouldn't have to work as hard because there are more people to do the job. So I do less than what I normally do.

It's only if I have a bunch of slackers in the group that I have to work more to make up for their lack of effort. I hate it when people don't do their part in group projects.

Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

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