ABSTRACT
There is a long history of using groups to influence individual cognitions, motivations, and behaviors. Groups are typically defined by four salient specific criteria (1). First, the minimum number of people necessary for a group is two. Second, group members usually have a common fate (i.e., success defined by overall rather than or in addition to individual achievement). Third, there are important group processes related to interaction and communication that move the group toward a common goal. Fourth, these group processes can exert an exceptional motivational influence on members (1).
