Chapter 3 Theory of Planned Behavior

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Control beliefs

- The extent to which you expect to experience factors that can facilitate exercise, as well as barriers to exercise. - How much power, or influence, you expect these facilitators and barriers will have on your exercise behavior

normative beliefs

- Whethre you believe that significant other think that you should exercise and your motivation to comply with their expectation - Whether your significant other exercise and how much you identify with them.

perceived behavioral control (PBC)

3rd predictor of intention - How much control the individual perceives he or she has over the behavior in question. - Compost of two underlying control beliefs

Attitudes

A person's positives or negative evaluation of exercise. Exercise attitude are influenced by two factors: - Instrumental outcomes and affective responses that are expected from exercise/emotionally response to exercise. - Value or importance that you place on those instrumental outcomes and affective responses.

Intention

A persons motivation, decision or conscious plan to exert effort to perform a particular behavior. Are determined by 3 factors: - Attitude towards behavior - subjective norm - PBC (perceived behavioral control)

Subjective norm intervention

By strengthen the subjective norm by surrounding oneself with people who are already physically active

Behavioral beliefs

Instrumental outcomes and affective response Value or importance on instrumental outcomes and affective response.

usefulness of TPB

Intervention based on TPB showed small, but significant effect on exercise amongst people, including the ones with chronic diseases.

Importance of perceived behavior controll

It accounts for the role of barriers in explaining exercise behavior. The importance of influence of how one thinks about barriers to exercise behavior. If believed that one is unlikely to encounter barriers to exercise and have easier access will more likely have higher perceived behavior control.

Limitations of TPB

It falls short in explaining peoples actual behavior - Attitudes exert stronger influence on intention than do subjective norm or PBC - Attitudes that reflect expected affective responses to exercise seem to be more influential than attitudes reflecting anticipated instrumental outcomes from exercices - Intentions exerts a stronger influence on behavior than does PBC - Intention is better at predicting exercise over shorter intervals than longer intervals.

Perceived behavioral control (PBC)

To enhance exercise success, one could start with modified, simpler version of exercise. Create control to manage the time frame and exercise to eventually establish exercise routine.

Attitude intervention

Trainer can provide list of benefits of exercise he highly values - Can provide reassurcance starting a less intense workout - Reassurance of no pain or excessive discomfort - Intervention targets intrumental and affective aspect of attitude

Is Theory planned behavior relating to self-efficacy?

Yes, it is relating to self-efficacy and uses the central role of to intention as direct influence on behavior.

Subjective Norm (TRA)

a person's perception about what others think of the behavior -Normative Beliefs -Motivation to Comply -Construct which caputres the degree to which a person feels social pressure to perform the behavior, is also predicted on two factors: normative beliefs.

Theory of Planned Behavior (TPB)

a theory that predicts health behavior on the basis of three factors: personal attitude toward the behavior, the subjective norm regarding the behavior, and perceived degree of control over the behavior - Theory of planned behavior grew out of an earlier theory, theory of reasoned actions which was developed to understand how attitudes influence behavior.


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