Theory of Planned Behavior

Paper Summary:

This paper explains the basic assumptions underlying Ajzen's theory of planned behavior and its objectives. The paper asserts that, while the theory is a well-constructed explanation of human behavior with significant strengths, it also has weaknesses, beginning with the premise upon which it is based. Finally, the paper looks at how the theory of planned behavior can be used successfully in the nursing profession.

From the Paper:

"The theory of planned behavior (TPB) rests on two assumptions: that humans are rational beings and as such make use of information to guide their actions and; that individuals determine the implications of future actions before engaging in them. The objectives of TPB are not only to explain behavior but also to predict and modify it. It states that intent is the most important determinant of one's actions. Intention is comprised of an individual's attitude toward a particular situation and its corresponding environmental pressures, called subjective norms. A third antecedent to action, labeled perceived behavioral control, is one's estimation of the ease or difficulty involved in carrying out a particular task. TPB claims that positive attitudes and subjective norms along with greater perceived control increase the likelihood of one's intention to act."

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