Decision development in small groups I: A comparison of two models

This study compares two mutually exclusive models of small group decision‐making processes. The unitary sequence model—the classical model of decision development—assumes that all groups follow the same sequence of phases. The alternative, the multiple sequence model, assumes that different groups follow different sequences. The models were tested with data from two sets of groups: student groups performing a ranking task and groups of physicians performing a program planning task. Results of the study support the multiple sequence model and suggest revisions in current theories of decision development.