The theory of reasoned action and theory of planned behavior have been influential cognitive models for understanding and predicting social behavior across a variety of domains. Both focus on the question of how to determine the likelihood that an individual will engage in a specific behavior. The theory of reasoned action exam-ines determinants of volitional
Theory of Planned Behavior Definition Developed by Icek Ajzen in 1985, the theory of planned behavior (TPB) is today perhaps the most popular social-psychological model for the prediction of behavior. It has its roots in Martin Fishbein and Ajzen’s theory of reasoned action, which was developed in response to observed lack of correspondence between general
The theory of planned behavior, developed by Icek Ajzen, is a social cognitive theory that has guided a large majority of theory-based research on physical activity. The theory of planned behavior is an extension of the theory of reasoned action developed by Martin Fishbein and Icek Ajzen in 1975. Since its introduction over 25 years