Mathematics, 15.04.2021 20:50 peno211
A researcher wants to test the effectiveness of billboards in increasing HPV vaccination rates. She chooses two cities, one gets the pro-HPV vaccine billboards for 3 months and the other city does not. She collects baseline data on HPV vaccine rates at the beginning of the study and then again at 3 month and compares HPV vaccine rates between the two cities. This is what type of study
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A researcher wants to test the effectiveness of billboards in increasing HPV vaccination rates. She...
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