An example of an effect in public communication would be:

The adoption of healthier behaviors represents a significant outcome in public communication efforts, particularly in health campaigns. When a communication campaign is designed effectively, it aims to influence attitudes and change behaviors in a specific target audience. Public communication typically seeks to promote beneficial practices that positively impact individuals and communities, especially in areas like public health.

By measuring behavior change, such as an increase in the adoption of healthier habits (e.g., quitting smoking, increasing physical activity, or improving dietary choices), the effectiveness of the campaign can be evaluated. This change indicates that the campaign has successfully communicated its message and motivated the audience to make real, tangible changes in their lives, which is the ultimate goal of many public communication campaigns.

While the other options, such as increased social media followers or revenue, may indicate engagement or success in some business contexts, they do not necessarily reflect a direct effect of the campaign on individual behavior, which is a critical indicator of the effectiveness of public communication efforts. Similarly, the number of campaigns initiated is a measure of output rather than outcome, focusing more on the quantity of efforts rather than their impact or effectiveness on the audience's behavior.