Identify which of the following six types of study designs most appropriately ch
ID: 70617 • Letter: I
Question
Identify which of the following six types of study designs most appropriately characterizes the situation described below.
To test the efficacy of vitamin C in preventing colds, army recruits are randomly assigned to one of two groups: one in which 500 mg of vitamin C is administered daily, and one in which 500 mg of a placebo is administered daily. Both groups are followed to determine the number and severity of subsequent colds.
Cross-sectional study
Case-control study
Prospective cohort study
Historical prospective cohort study
Clinical trial
Community trial
a.Cross-sectional study
b.Case-control study
c.Prospective cohort study
d.Historical prospective cohort study
e.Clinical trial
f.Community trial
Explanation / Answer
Ans-A cross sectional study
Comparison in different population at same point of time for a particular case and different drug.
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