Choice sets and choice intentions

Researchers have widely accepted the argument that the Fishbein model generally predicts better if the intention measure corresponds to the predicted behavior with respect to target, action, context, and time frame. Although the model is routinely applied in situations involving choice among multiple alternatives, researchers frequently overlook the need to measure intentions so that they correspond to the multiple target behaviors that constitute the subject'S salient choice set. The present study was designed to demonstrate the effect of choice set on the measurement of behavioral intentions of American students. The data support the argument that Fishbein'S intention measure is quite sensitive to the choice set involved, perhaps one reason why intention measures sometimes fail to predict behavior accurately.