Which of the following decreases the reliability of results from a clinical trial?

AAn obsolete medical treatment
BA double-blind technique
CA short observation period
DA voluntary enrollment plan

Verified Answer :

The best answer to the question states above is letter C. A short observation period.

 A scientist's primary concern in a clinical trial is the patient's safety, there fore short observation decreases the reliability of results from a clinical trial

Answer:

C. A short observation period

Explanation:

ape.x