The theory of planned behavior is a psychological theory that links beliefs to behavior, holding that three core components, attitude, subjective norms and perceived behavioral control, together shape an individual's behavioral intentions, with behavioral intention the most proximal determinant of human social behavior. Icek Ajzen elaborated the theory to improve on the predictive power of the earlier theory of reasoned action, adding perceived behavioral control as a component the earlier theory lacked. It has since been applied to studies of beliefs, attitudes, behavioral intentions and behaviors across domains including advertising, public relations, healthcare, sport management, consumer and household finance, and sustainability. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Core ClaimA person's intention to perform a behavior, and so the behavior itself, is predicted by three factors: their attitude toward the behavior, the subjective norm of what others expect, and their perceived control over actually carrying it out. 1 Connections
Held Differently
The theory of planned behavior was elaborated by Icek Ajzen specifically to improve on the theory of reasoned action, adding perceived behavioral control as the one component the earlier theory lacked.
Source Wikipedia: Theory of Planned Behavior
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1. Wikipedia: Theory of Planned Behavior
Wikimedia FoundationIntroduction
three core components, namely, attitude, subjective norms, and perceived behavioral control, together shape an individual's behavioral intentions
Extension section, perceived behavioral control
perceived behavioral control refers to the degree to which a person believes that he or she can perform a given behavior
History section, Ajzen 1985 proposal
Icek Ajzen (1985) proposed TPB in his chapter "From intentions to actions: A theory of planned behavior."
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