Question #6422533Single Choice
Biology
Question
A scientist wants to study the impact of a new drug on reducing blood pressure. She divides patients into two groups: one receiving the drug and the other receiving a placebo. What is the purpose of the placebo group?
Options
A
To increase the sample size
B
To provide a baseline for comparison
C
To test the side effects of the placebo
D
To make the experiment more complex
Answer & Analysis
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