Social Marketing
Nutrition and Physical Activity


Step 4: Gather Credible Evidence

You'll need to decide how you will collect information. Because you may be measuring changes in knowledge, attitudes, and behaviors, you should plan to have a good set of baseline data to know what people are doing before any intervention activities take place.

Next, you should have a plan for how all of the evaluation data are going to be used. If you don't know how the answer to any particular question will be used, then don't ask it. The data you collect in the evaluation step can (and should) be used not only as a marker of how you did, but also as formative data for the next phase of your program.

Need to review? See Phase 2: Collect Data.