Question

a randomized clinical trial would not require which of the following?
a correlation to be revealed before the trial
the ability to determine whether such a trial would be ethical or unethical to conduct
a control group of individuals
the resources to follow participants (and possibly their descendants) over long periods of time
an experimental group of individuals

Explanation:

A randomized clinical trial aims to test the efficacy of an intervention. It requires a control group, an experimental group, ethical determination, and resources for follow - up. However, it does not require a correlation to be revealed before the trial starts as the purpose is to determine if a relationship exists.

Answer:

a correlation to be revealed before the trial