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Causality in the Theory of Planned Behavior
Reuven Sussman1,2, Robert Gifford1
11 University of Victoria, British Columbia, Canada, USA.
The theory of planned behavior suggests intentions predict behavior. This study found intentions also influence attitudes, norms, and perceived control, suggesting reciprocal relationships. This challenges the original theory, proposing a modified model.
Area of Science:
- Behavioral Psychology
- Health Sciences Theory
Background:
- The theory of planned behavior (TPB) is a widely used psychological model.
- TPB posits that behavioral intentions are predicted by attitudes, subjective norms, and perceived control.
Purpose of the Study:
- To investigate potential reverse-causal pathways in the theory of planned behavior.
- To determine if behavioral intentions can influence attitudes, subjective norms, and perceived control.
Main Methods:
- A correlational study was conducted.
- A laboratory-based experiment was performed.
- A quasi-experimental field study was utilized.
Main Results:
- Evidence supported reverse-causal influence from intentions to the base components of TPB.
- Behavioral intentions were found to impact attitudes, subjective norms, and perceived control.
Conclusions:
- The theory of planned behavior should be revised to incorporate reciprocal causal relationships.
- Findings suggest a bidirectional influence between intentions and their predictors.
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