Controlled clinical trials enable researchers to:
A) test new drugs, new therapies, and new medical devices.
B) exercise control over who will receive an exposure.
C) identify definitive relationships between causes and effects.
D) All are correct.

Question

Quizplus · Accepted Answer

Controlled clinical trials allow researchers to test new interventions, control exposure allocation, and establish cause-effect relationships.

Controlled Clinical Trials Enable Researchers To