Final answer:
Vroom's model of decision-making recognizes multiple methods of group decision making and the appropriate method depends on the situation at hand. It is false to claim that there is only one method for groups to solve problems. Majority rule can fail to provide a decisive outcome when multiple options are present due to voting cycles.
Step-by-step explanation:
False, Vroom's normative model of decision-making does not assume that there is only one method of group decision making. In fact, Vroom's model suggests that no single decision-making process is best for all situations; it depends on several contingency factors such as the importance of the decision, the amount of required information, and the level of stakeholder involvement. Groups often face various problems and must choose the most appropriate decision-making method from among many, which can include autocratic decisions, consultative processes, a democratic approach, or consensus building.
Majoirty rule can indeed fail to produce a preferred outcome when there are more than two choices. This is known as a voting cycle, where preferences can cycle in a way that never results in a conclusive outcome; for instance, majority may prefer policy A over B, policy B over C, and policy C over A, creating an inconsistency.