The three types of influence in a group

The first three previous aspects illustrate very well the three constitutive dimensions of all groups : these are of course influenced by their members, but the group's organization and its history as well as its relations with its environment :

• Convergence and conflict illustrate clearly the influence of people on the group
• The size of the group is a data specific for a group , regardless of the peculiarities of its members
• Unpredictability and abundance which encourage to make choices after the event often depend on the environment

The following aspects are combined according to these three dimensions. Those describing the influence of people go along with a aspect more difficult to deal with, although it is not always negative (as conflict associated with convergence, which allows questioning). Involvement, with its opposite withdrawal, is the next facet and the fourth counterintuitive facets. The following will often call for our common sense.