Final answer:
The Theory of Planned Behavior (TPB) defines the 5 components influencing behavior: intention, knowledge & skill, salience of the behavior, environmental constraints, and habitual behavior development through experience.
Step-by-step explanation:
The theory that defined the 5 components that directly affect behavior is the Theory of Planned Behavior (TPB). These components are intention, knowledge & skill, salience of the behavior to the individual, environmental constraints, and the habitual nature of behavior with experience. TPB was developed from the Theory of Reasoned Action, and it helps explain how we can predict an individual's intention to engage in a behavior at a specific time and place. It emphasizes that the intention is the most important predictor of behavior.
However, intention alone is not enough; the individual must also have the knowledge and skills necessary to perform the behavior, perceive it as important (salient), and have few environmental constraints preventing them. Finally, the more frequently a behavior is performed, the more likely it is to become habitual.