Pub. date: 2010 | Online Pub. Date: August 17, 2010 | DOI: 10.4135/9781412959216 | Print ISBN: 9781412959209 | Online ISBN: 9781412959216| Publisher:SAGE Publications, Inc.About this encyclopedia
Planned Behavior, Theory of
Julia B. Corbett
Why individuals choose to behave one way and not another has been a source of interest to scholars for decades. What role does a person's attitude play? Is social pressure a determining factor? Is past experience important? For obvious reasons, many science, health, and environmental communicators are interested in influencing behavior, whether this involves exercising more, saving energy, getting a mammogram, or planting a tree. If communicators knew what factors were most associated with a particular behavior, it might be possible to influence the outcome. One of the most influential and well-supported social-psychological theories for predicting human behavior is called the theory of planned behavior (TPB). In hundreds of studies around the world, the theory has been successful in predicting behavior in a variety of contexts and with increasing specificity. Overall, the model has a good track record, with just three variables able to explain 30% to 50% of The ...