What Is the Primary Limitation with Using a Nonrandomized Clinical

question 48

Multiple Choice

What is the primary limitation with using a nonrandomized clinical trial?

• A) Not effective at controlling for measured confounding variables
• B) Not effective at controlling for unmeasured confounding variables
• C) Patients may be assigned to an intervention group that they prefer not to be assigned.
• D) A comparison group is not available.

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