<P> The theory of planned behavior was proposed by Icek Ajzen in 1985 through his article `` From intentions to actions : A theory of planned behavior . '' The theory was developed from the theory of reasoned action , which was proposed by Martin Fishbein together with Icek Ajzen in 1980 . The theory of reasoned action was in turn grounded in various theories of attitude such as learning theories , expectancy - value theories , consistency theories ( such as Heider 's balance theory , Osgood and Tannenbaum 's congruity theory , and Festinger 's dissonance theory ) and attribution theory . According to the theory of reasoned action , if people evaluate the suggested behavior as positive ( attitude ) , and if they think their significant others want them to perform the behavior ( subjective norm ) , this results in a higher intention ( motivations ) and they are more likely to do so . A high correlation of attitudes and subjective norms to behavioral intention , and subsequently to behavior , has been confirmed in many studies . </P>
<P> The theory of planned behavior was proposed by Icek Ajzen in 1985 through his article `` From intentions to actions : A theory of planned behavior . '' The theory was developed from the theory of reasoned action , which was proposed by Martin Fishbein together with Icek Ajzen in 1980 . The theory of reasoned action was in turn grounded in various theories of attitude such as learning theories , expectancy - value theories , consistency theories ( such as Heider 's balance theory , Osgood and Tannenbaum 's congruity theory , and Festinger 's dissonance theory ) and attribution theory . According to the theory of reasoned action , if people evaluate the suggested behavior as positive ( attitude ) , and if they think their significant others want them to perform the behavior ( subjective norm ) , this results in a higher intention ( motivations ) and they are more likely to do so . A high correlation of attitudes and subjective norms to behavioral intention , and subsequently to behavior , has been confirmed in many studies . </P>
when was the theory of planned behavior developed
when was the theory of planned behavior developed
1985
1985