What is the theory of planned behavior?

The theory of planned behavior posits that an individual's intentions are the best predictors of their actual behavior. This theory is integral to understanding how attitudes, beliefs, and social norms influence the decision-making process. It emphasizes that when people plan to perform a specific behavior, their intentions are shaped by three key components: their attitude towards the behavior, the subjective norms surrounding the behavior, and their perceived control over the behavior.

For instance, if someone has a positive attitude toward exercising, perceives that their friends support this activity, and believes they can find the time to do it, they are more likely to intend to exercise. This intention then translates into actual behavior. The theory accounts for how not just desire or emotional response but the intention behind actions guides one’s choices in various contexts. Thus, intentions serve as a strong predictor for behavior, making this choice the most accurate representation of the theory's core premise.