Mathematical models have been used extensively to describe the judgmental processes and strategies of individual decision makers, but rarely have the procedures been extended to describe the judgmental strategies of decision-making groups. The present study attempts to extend the procedures for the purposes of describing group decision-making strategies. Five mathematical models are examined as potential representations of the subjective evaluation decision schemes of individual decision makers. Based on the individual decision-maker model designations, predictions are made as to the best model representation for the decision groups composed of these individual members, whereby the aggregate of the members' judgments is used as an input to the resulting group models. The accuracy of the predictions is examined in light of individual differences in response-scale use by various subjects. (Author)