This example illustrates two ways in which group dynamics work. First, one or two children adopt a mannerism and it spreads to the group. After the majority of the group has adopted it, it is very likely that other individual children will adopt it. Groups influence individuals, and individuals influence groups.

Adults are also influenced by the behavior of others. When adults voluntarily join a new group, they usually want to fit in and show others that they are worthy of membership. New members of a group are even more likely to be influenced by group dynamics because they don’t want to seem obstinate or contrary. It usually takes a while before the new member is able to influence the thoughts and behavior of the group.

Group Size and Member Interaction

Georg Simmel was one of the first sociologists to look at how the size of a group affects interactions among its members. Simmel believed that in a dyad, a group of two people, interactions were intense and very personal. He also believed that a dyad was the least stable category of groups. A marriage is an example of a dyad. Simmel further said that a triad, a group of three people, was much more stable because conflicts between two of its members could be mediated by the third person. In general, Simmel believed that larger groups were more stable than smaller groups, but that in smaller groups the interactions between members were more intense and more intimate.

In the early 1950s, Solomon Asch conducted an experiment that illustrated how strongly group membership can influence behavior. He found that one-third of the subjects he tested were influenced by the group’s consensus, even though the group was obviously incorrect.

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