Social psychologists have long been interested in the processes by which perceivers generate their inferences about individuals' and groups' decisions from their behavior. Attitude and preference inferences have been studied at the level of the individual target as well as the group target. This study investigated the effects of the social unit of the deciding faction (individual or group), the structural composition of the decision (structured or unstructured), and the type of decision (decision or nondecision) upon these inferences and upon people's perceptions of the support of decisions. College students (N=65) read scenarios describing various decisions which they rated in terms of the individuals' or groups' degree of support for the structured or unstructured decisions and nondecisions. No significant effects were found for the social unit (individual or group) of the deciding faction. Significant effects were found for the type and structure of the decision. A significant interaction was also found for type and structure. Future research should be conducted to investigate the effects of relevance and time upon people's perceptions of support for decisions. (Author/ABL)