What is one of the main methods used to evaluate the success of health campaigns?

Evaluating the success of health campaigns is primarily focused on assessing their impact on the target population's health behaviors and knowledge. Changes in health literacy and behavior serve as critical indicators because they reflect whether the campaign effectively conveyed its message and influenced individuals to adopt healthier practices. For instance, if a campaign aimed to reduce smoking rates is successful, one would expect to see an increase in smoking cessation among the targeted demographic and an overall improvement in understanding the risks associated with tobacco use.

Measuring health literacy involves looking at whether people have gained a better understanding of health information, which can lead to informed decision-making about health behaviors. When both health behaviors and literacy improve as a result of a campaign, it showcases a clear link between the campaign's objectives and the results achieved, providing concrete evidence of its effectiveness.