Meyer and Colleagues (1980)conducted a Community Study in California to Reduce

Meyer and colleagues (1980) conducted a community study in California to reduce the risk factors for coronary heart disease.What did the results indicate as the most effective aspect of intervention?

A) hiring research assistants to monitor each participant's daily behaviours
B) a media education campaign aimed at the children of parents at risk for heart disease
C) paying individuals to change their risky behaviours
D) individual counselling in addition to a media campaign about heart disease