Question

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.

Answer 1

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Experimental studies

Experimental studiesIn an experimental study, the investigator determines through a controlled process the exposure for each individual (clinical trial) or community (community trial), and then tracks the individuals or communities over time to detect the effects of the exposure. For example, in a clinical trial of a new vaccine, the investigator may randomly assign some of the participants to receive the new vaccine, while others receive a placebo shot. The investigator then tracks all participants, observes who gets the disease that the new vaccine is intended to prevent, and compares the two groups (new vaccine vs. placebo) to see whether the vaccine group has a lower rate of disease. Similarly, in a trial to prevent onset of diabetes among high-risk individuals, investigators.