Imagine a study on how a new drug affects blood pressure. The
researchers will give the drug to 25 people in the study and a
placebo to the other 25, and track how blood pressure changes in
participants after receiving the drug.
In which of the following four study designs would you expect
taking the drug to be associated with decreased blood pressure over
time even if the medicine did not actually lower blood
pressure?
Imagine a study on how a new drug affects blood pressure. The researchers will give the drug to 25 people in the study a
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