Self-efficacy and reasoned action: Predicting oral health status and behaviour at one, three, and six month intervals

This study tested the usefulness of the theory of reasoned action and the addition of self-efficacy to this model for the prediction of oral health behaviour as part of a larger intervention at the State University of New York at Buffalo School of Dental Medicine. Self-efficacy is a belief in one’s ability to perform a particular behavior. The theory of reasoned action is an attitudinal model focused on predicting behavior. One hundred and sixty-six patients volunteered for an intervention and assessment program at the Oral Health Enhancement Clinic. Participants visited the clinic 7 times over a 14 month period. Relationships among social cognitive model variables and clinical and self-report outcome measures were examined at three different time points over increasingly longer time spans. Results indicated that the theory of reasoned action model was useful in predicting oral health behavior, and adding self-efficacy to the model significantly increased the reliability of predictions of outcome measures. Relationships for social cognitive variables were stronger for self-report than for clinical indices. Reasons for these differences are suggested.