Little research informs the use of the Extended Parallel Process Model (EPPM) of persuasion when threat and efficacy judgments are rendered for someone other than the message recipient. Nevertheless, a wide range of health promotion consists of influencing such judgments. Two studies examine the utility of using the EPPM in a context involving threats to others. Results show that the expected measurement models hold in this new context, and that an additive model is a stronger fit than a multiplicative one when considering how threat and efficacy combine to affect behavioral intentions but not when considering behavior. The study also examines the effects of a print intervention implemented with school employees in Michigan derived from the EPPM. The results are discussed in terms of their theoretical import and their application in this new context.
Bibliographical noteFunding Information:
This research was supported by Grant/Cooperative Agreement Number U59 EH000213-1 from the Centers for Disease Control and Prevention (CDC). Its contents are solely the responsibility of the authors and do not necessarily represent the official views of CDC.
1This research was supported by the Michigan Department of Community Health (MDCH) and the Michigan Public Health Institute. These particular studies resulted from recommendations made by a collaboration of public and private institutions called the Asthma Initiative of Michigan (Michigan Asthma, 2001) and are part of a larger project funded cooperatively by the MDCH and the Centers for Disease Control and Prevention (CDC) to address the burden of asthma.