Group decision-making (also known as
collaborative decision-making) is a situation faced when
individuals collectively make a choice from the alternatives before them. The
decision is then no longer attributable to any single individual who is a member of the group. This is because all the individuals and
social group processes such as
social influence contribute to the outcome. The decisions made by groups are often different from those made by individuals.
Group polarization is one clear example: groups tend to make decisions that are more extreme than those of its individual members, in the direction of the individual inclinations.