Explain the Completely Randomized Design

question 96

Multiple Choice

Explain the Completely Randomized Design
-A drug company wanted to test a new depression medication. The researchers found 700 adults aged 25-35 and randomly assigned them to two groups. The first group received the new drug, while the second received a placebo. After one month of treatment, the percentage of each group whose depression symptoms decreased was recorded and compared. Identify the experimental units.

• A) the 700 adults aged 25-35
• B) the percentage who had decreased depression symptoms
• C) the drug (medication or placebo)
• D) the one month treatment time