Information integration theory is a unified general theory that covers several areas of psychology from psychophysics to clinical judgment. It rests on a mathematical basis that has had considerable success in some precise and demanding tests. (Author)

This project studies attitude change toward U.S. Presidents using the conceptual framework and the methodology of a mathematical theory of information integration. The subjects received various paragraphs of information about certain U.S. Presidents, and evaluated them on general statesmanship. This evaluation requires the subjects to combine or…