Studies the sequence of phases in group decision making. Compares the unitary sequence model, which assumes that all groups follow the same sequence of phases, and the multiple sequence model, which assumes that different groups follow different sequences. Results support the latter model and suggest revisions in current decision development. (PD)

Builds on previous research with this detailed analysis of multiple decision sequences in two sets of groups: students performing a ranking task and physicians performing a program planning task. Finds support for the Multiple Sequence Descriptive System and isolates types of conflict and idea development patterns. (PD)

Tests a model of the factors that influence groups to follow various paths as they make decisions. Uses three panels of contingency variables to predict properties of the group's developmental path. Finds that group decision paths and their properties can be predicted as a function of task and relational contingencies. (MS)

A two-tiered model of group influences on individual choice behavior is developed and evidence relevant to the model is reviewed in this paper. The model consists of two parts: a model of individual choice, and models of group influence on components of the individual choice model. The model of individual choice is based on the…

Supports the hypothesis that interaction processes connected with the Valence Distribution Model mediated the effect of decision schemes on group decisions. Substantiates the assumptions that interaction is a crucial factor in group decision making. Although input conditions may also have an impact on decision outcomes, they are mediated by…