Strength
At first, the theory of planned behavior can cover people's non-volitional behavior which cannot be explained by the theory of reasoned action.
An individual's behavioral intention cannot be the exclusive determinant of behavior where an individual's control over the behavior is incomplete. By adding "perceived behavioral control," the theory of planned behavior can explain the relationship between behavioral intention and actual behavior.
Several studies found that the TPB would help better predict health-related behavioral intention than the theory of reasoned action (Ajzen, 1988). The TPB has improved the predictability of intention in various health-related fields such as condom use, leisure, exercise, diet, etc.
In addition, the theory of planned behavior as well as the theory of reasoned action can explain the individual's social behavior by considering "social norm" as an important variable.
Read more about this topic: Theory Of Planned Behavior, Evaluation of The Theory
Famous quotes containing the word strength:
“Though strength be wanting, the will to action
Merits praise.”
—Ovid (Publius Ovidius Naso)
“Our poetry emulates the recent progress in military strategy: Our army’s strength is the foot soldiers.”
—Franz Grillparzer (1791–1872)
“He has his health, and ampler strength indeed
Than most have of his age.”
—William Shakespeare (1564–1616)