Visit the Healthy People 2030 website, Topics and Objectives page (Links to an external site.) (Links to an external site.) and explore some topics of interest to you. Discuss how epidemiologic methods are used to evaluate Healthy People 2020 objectives. Give an example. The example can be one you created or one from an actual study. Include the primary goal/purpose of the descriptive or analytical study, design type in the category chosen, uses of analytic or descriptive type, at least one advantage and disadvantage of the design type.