Using the Extended Parallel Process Model in World Studies:On Health Behaviors A Systematic Review

The effectiveness of health education programs depends to a large extent on the correct use of existing theories and models. Extended Parallel Process Model is considered as one of the effective models in health education having influential structures in studies on health behaviours. Therefore, the present study set out to study the use of Extended Parallel Process Model in health related behaviours through a systematic approach.
Scoups, Springer, Google Scholar, Science Direct and Iranian databases including Iran Medes, SID, Magiran, etc were all considered in this study. Extended parallel process and Developed parallel process were used as two keywords in the searches. There were 25 papers in English and Persian, 22 of which were studied. Ethical issues were considered in all stages of the research, and there was no bias and confinement on the part of the researcher.
The findings of this study showed that through the use of all the structures of the parallel process model, especially the perceived self-efficacy construct, the effectiveness of training has been increased in conducted interventional studies. In cross-sectional studies, on the other hand, all structures, especially perceived self-efficacy and sensitivity of perception as well as perceived severity have been important predictors for intention and behaviour.
Our results revealed that Extended parallel process model can be used to prevent and control many risky behaviours before the subject exposed to risk factors.