How is the theory of planned behavior different from the theory of reasoned action?

Question

Quizplus · Accepted Answer

The theory of planned behavior builds on the theory of reasoned action by including the idea that perceptions of control over the outcome are important. Both theories emphasize the importance of attitudes and subjective norms in predicting behavior, but the theory of planned behavior takes it a step further by adding the component of perceived behavioral control. This includes factors such as self-efficacy and the perception of external barriers to behavior, which can influence whether someone actually carries out the intended behavior. Option A is incorrect because both theories emphasize the importance of planning, but this is not a key difference between the two. Similarly, option B is incorrect because both theories recognize the role of attitudes, but the theory of planned behavior focuses more on the specific beliefs underlying those attitudes. Option C is incorrect because both theories emphasize the importance of specific and measurable goals, but this is not a key difference between the two.

How Is the Theory of Planned Behavior Different from the Theory