Andrew A. Mitchell’s research while affiliated with Carnegie Mellon University and other places

Fishbein's attitude theory posits that beliefs are the only mediators of attitude formation and change. The validity of this proposition for consumers’ beliefs about product attributes and brand attitudes was exmained in the context of an advertising effects study. To manipulate product attribute beliefs and to create settings in which other mediation processes might occur, the authors exposed subjects to simple advertisements that contained either a verbal claim or visual information. Level of repetition also was varied. As expected, product attribute beliefs mediated attitude formation. However, another variable, termed attitude toward the advertisement, also mediated brand attitudes and purchase intentions. The authors discuss alternative explanations for the results and offer suggestions for future research.