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Clínica y Salud

On-line version ISSN 2174-0550Print version ISSN 1130-5274


TOPA, Gabriela; MORIANO, Juan Antonio  and  MORALES, J. Francisco. Giving up Smoking: Meta-analysis and Structural Equation Model from the Theory of Planned Behavior. Clínica y Salud [online]. 2012, vol.23, n.1, pp.43-61. ISSN 2174-0550.

Meta-analyses of the Theory of Planned Behavior have not been applied to smoking cessation despite that progressively increases the number of primary studies. We conducted a meta-analysis of 121 effect sizes (ES) on Theory of Planned Behavior and smoking cessation and examined the influences of four potential moderator variables. Global ES have been obtained, with medium (ES = .28 for intention-behaviour, ES = .33 for perceived control-intention, ES = .29 for subjective norm-intention) or large (ES = .40 for attitude-intention) values. Results of moderator analyses showed that time interval between intention and behaviour; scale correspondence, and participants' age moderated the ES. Finally, the pooled correlation matrix has been used as an input for structural equation model analyses (SEM), testing a wider model. The theory effectively explained smoking cessation intention and behaviour.

Keywords : Theory of Planned Behavior; smoking cessation; meta-analysis; structural equation models.

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