In one study on the effect of Simvastatin on cholesterol level, 50 subjects were
ID: 3208148 • Letter: I
Question
In one study on the effect of Simvastatin on cholesterol level, 50 subjects were randomly chosen to receive Simvastatin and 50 were chosen to receive a placebo. These subjects were later examined to check for differences in their cholesterol levels. In a second study, 100 subjects who acknowledged being long time Simvastatin takers had their cholesterol levels compared with those of 100 people who had never taken Simvastatin. Which of the following statements is correct? The first study was a controlled experiment, while the second was an observational study. The first study was an observational study, while the second was a controlled experiment. Both studies were controlled experiments. Both studies were observational studies.
Explanation / Answer
The first study was a controlled experiment, while the second was an observational study.
In first study we did an experiment and divided two group and gave simvastatin to one group while placebo to other and then observe the result.
In the second study, we just observed result with data colllected and did not carry out any experiment
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