Clinical Trials · Pharmacology

In clinical trials, 'Randomization' is primarily used to:

  1. Ensure the sample size is large enough
  2. Distribute unknown confounding variables equally between the groups
  3. Ensure the trial is completed quickly
  4. Reduce the cost of the medication used
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Correct answer: Distribute unknown confounding variables equally between the groups

Randomization helps ensure that the treatment and control groups are as similar as possible. This makes it more likely that any observed differences in outcomes are actually due to the drug and not other factors like age or health status.

Difficulty: Medium Question 19 of 20

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