A pharmacist decides to develop an initiative that promotes healthier food choices, smaller portion sizes, and physical activity after carefully determining the need for it in her community. She is concerned about the high obesity rate in her patients and its detrimental effects on their quality of life. The pharmacy is located in a dangerous, low socioeconomic status neighborhood that has several fast-food restaurants but few grocery stores carrying good-quality produce. Among other things, the pharmacist must consider the convenience and affordability of the fast-food establishments, the distance the intended audience may have to travel to access healthier foods, and the availability of safe places to exercise In light of all the obstacles that can block the success of the initiative once it is implemented, the pharmacist must determine if the intended audience is capturing and applying the desired message. This is done by