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Wrap it up : a comparison of the Health Belief Model and the theory of planned behavior


Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/13102

Wrap it up : a comparison of the Health Belief Model and the theory of planned behavior

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dc.contributor.author Montanaro, Erika
dc.date.accessioned 2011-08-30T19:13:16Z
dc.date.available 2011-08-30T19:13:16Z
dc.date.issued 2011-08-30
dc.date.submitted July 2011
dc.identifier.uri http://hdl.handle.net/1928/13102
dc.description.abstract This study attempts to experimentally manipulate core constructs of the Health Belief Model (HBM) and the Theory of Planned Behavior (TPB) in order to increase condom use behavior. A direct comparison of the two models to determine the theory that best explains condom use behavior change will also be attempted. University of New Mexico psychology students (N = 280) completed measures on perceived susceptibility, severity, benefits, barriers, condom use self-efficacy, attitudes toward condoms, subjective norms, and perceived behavioral control. Next, they completed one of three randomly assigned computer-based interventions. 218 (77.8%) completed a behavioral assessment one month later. The TPB was best at explaining risky sexual behavior at baseline; it explained 30.6% of the variance while the HBM only explained 1.5% of the variance. The interventions were able to manipulate every predictor but perceived barriers. Mediational analyses of the HBM revealed that intervention type had an effect on perceived susceptibility, benefits, barriers, and condom use self-efficacy, but none of these mediators predicted risky sexual behavior at follow-up. TPB mediators attitudes toward condom use and subjective norms were influenced by intervention type. Subjective norms and perceived behavioral control predicted intentions, but intentions did not predict behavior at follow-up. This study supports the assertion that theory-based interventions are more effective at changing proposed mediators of behavior; however, it was not successful at eliciting behavior change. In sum, current behavior theories should be rigorously examined and modified if need be to create more comprehensive theories of behavior change. en_US
dc.language.iso en_US en_US
dc.subject health behavior theory en_US
dc.subject sexual health en_US
dc.subject.lcsh Condom use--Psychological aspects.
dc.subject.lcsh Health Belief Model.
dc.subject.lcsh Attitude (Psychology)
dc.subject.lcsh Operant behavior.
dc.subject.lcsh Motivational interviewing.
dc.title Wrap it up : a comparison of the Health Belief Model and the theory of planned behavior en_US
dc.type Thesis en_US
dc.description.degree Psychology en_US
dc.description.level Masters en_US
dc.description.department University of New Mexico. Dept. of Psychology en_US
dc.description.advisor Bryan, Angela
dc.description.committee-member Smith, Bruce
dc.description.committee-member Yeater, Elizabeth

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