Predicting low-fat diet intentions and behaviors for the prevention of coronary heart disease: An application of protection motivation theory among an australian population

This study developed psychometric scales to measure the main components of Rogers' (1983) Protection Motivation Theory (PMT). It was conducted in the context of a community survey (n = 800) examining respondents' intentions and self-reported behavior of following a low-fat diet to prevent coronary heart disease (CHD). PMT's coping appraisal components of self-efficacy and response efficacy produced positive significant associations with outcome measures related to low-fat diet. However, the theory's threat appraisal variables of vulnerability and severity failed to yield a positive relationship with intentions and behavior. We conclude that health education should primarily focus on positive coping messages to motivate members of the community to follow a low-fat diet for the prevention of CHD.