1985 年 1 巻 1 号 p. 35-44
A method of monitoring information acquisition was used to examine directly the decision making process presumed to underlie prosocial behavior. Subjects simulated the process in which they selected a behavior from available behavioral alternatives which were expected to occur in a situation where donating was needed. In the early decision period, subjects employed search strategies designed to eliminate some of the available behavioral alternatives on the basis of only a few attributes such as behavioral costs. On the other hand, in the late-decision period, subjects employed search strategies consistent with the behavioral alternative-wise decision making process presumed to underlie both Fishbein (1967) and Schwartz & Howard (1980, 1981, 1982) models. Data also indicated that the decision making process, the search strategies and the cognitive importance of individual behavioral attributes, varied according to the decision making period. These results suggested that a prosocial decision making process model incorporating decision making periods was needed.