Testing the theoretical design of a health risk message: reexamining the major tenets of the extended parallel process model.

This study examined the fear control/danger control responses that are predicted by the Extended Parallel Process Model (EPPM). In a campaign designed to inform college students about the symptoms and dangers of meningitis, participants were given either a high-threat/no-efficacy or high-efficacy/no-threat health risk message, thus testing the extreme assumptions of the EPPM. Although the study supports the main predictions of the EPPM in the context of meningitis, the results provide new evidence that only a marginal amount of threat is necessary in a health risk message to move the target audience toward the desired protective measures. In addition, the results also suggest that the messages containing only threat may only scare the target audience further into fear control. Implications and future research are discussed.