THE PERCEPTION OF RISK MESSAGES REGARDING ELECTROMAGNETIC-FIELDS - EXTENDING THE EXTENDED PARALLEL PROCESS MODEL TO AN UNKNOWN RISK

The Extended Parallel Process Model (EPPM) was developed as a model to assist in the development of effective risk communication messages, s pecifically messages that elicit adaptive behavioral responses. It has shown to be effective in several settings involving clearly delineate d dangers (e.g., safety bell usage, condom usage). Unfortunately, comm unicating risk messages is not always so straightforward. One increasi ng concern in the risk communication field is the controversy over ele ctromagnetic fields (EMFs) and the uncertain hazards they present to i ndividuals. The purpose of this study is to test the EPPM with this un known risk and to explore which type of risk message may motivate adap tive behavioral responses. In accordance with the EPPM model, 251 part icipants received either a low- or high-threat risk message and a list of control measures they could use to reduce their exposure to EMFs. Results suggest that the EPPM model can be extended to an unknown risk .