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:
“It’s not that I don’t want to be a beauty, that I don’t yearn to be dripping with glamor. It’s just that I can’t see how any woman can find time to do to herself all the things that must apparently be done to make herself beautiful and, having once done them, how anyone without the strength of mind of a foreign missionary can keep up such a regime.”
—Cornelia Otis Skinner (1901–1979)
“I am not yet born; O fill me
With strength against those who would freeze my
humanity, would dragoon me into a lethal automaton
would make me a cog in a machine, a thing with
one face, a thing,”
—Louis MacNeice (1907–1963)