Which study design was used to conduct this study? Be specific in describing the
ID: 78810 • Letter: W
Question
Which study design was used to conduct this study? Be specific in describing the study design (ie prospective cohort, experimental, case-control, etc).
You are interested in examining the relationship between believing in things-that-go-bump-in-the-night and watching Supernatural on the CW Network. You are able to determine the viewership of Supernatural from Nielsen Ratings on a state by state basis. Additionally, each of the 50 states has documentation on supernatural anxiety rates. You tabulate viewership and fear of supernatural things and then rank the states. You publish the relationship between watching Supernatural and fear of things-that-go-bump-in-the-night in a leading sci-fi journal.
Explanation / Answer
Retrospective cohort study is the type of study design used here. The expected outcome, fear of things that-go-bump-in-the-night has already occurred and we go back in time to determine wheather watching Supernatural on the CW network (exposure) has any effect on the fear (outcome). Here the study cohort are the people. The incidence of fear of things that-go-bump-in-the-night is calculated both in the exposed and non-exposed groups. Relationship between watching Supernatural and fear of things-that-go-bump-in-the-night is then calculated using statistical analysis.
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