Theory of Planned Behavior

Theory of Planned Behavior

William Patch

Where does planning fit into your life?

Your EducationYour Profession

Family Gatherings

• Planning also comes into play when referring to one’s behavior, which takes us to our theory…

THE THEORY OF PLANNED BEHAVIOR

Izek Ajzen

The Theory of Planned Behavior (TPB) was formulated by Icek Ajzen, a Professor in Psychology at the University of Massachusetts.

The TPB was developed from the Theory of Reasoned Action (TRA) which was also formed by Icek.

CORE IDEA BEHIND TPB & TRA…….INTENTION

ACTION

Leads to ….

The idea behind the TRA is that one’s intentions are formed through the measuring of one’s attitude and subjective

norm towards performing a certain voluntary behavior.

Attitude: Certain attitudes are present before and while behaviors are performed.

Subjective Norm: How important people in the subject’s life would view the behavior.

Icek’s Findings: Not all behavior is voluntaryLeading us to a new factor

PBC Defined: refers to people's perceptions of their ability to perform a given behavior.- It is directly related to behavioral intentions and the actual behavior.

Perceived Behavioral Control

Perceived Behavioral Control

A Combination of:

I.) Self Efficacy-The difficulty of performing the action.

II.) Controllability -The belief that one has control over the

behavior.

General Rule

Strong Intentions

Strong Attitude

StrongSubjective

Norm

Strong PerceivedBehavioral

Control

More likely to perform the Behavior

Uses

• The Theory of Planned Behavior, like many communication theories, has been used to address many of the looming issue we have in society. – Premarital sex without condoms

– Obesity

– Alcohol abuse

– Cigarette abuse

Critics

• Like all theories, critics have voiced their opinion.– People think that there are holes in the theory saying that there

are more factors to consider.