Question

An experiment was conducted to evaluate the success of a methicillin-resistant Staphylococcus aureus (MRSA) vaccine. MRSA can be prevented if subjects

regularly wash their hands. The subjects were treated, but only some of the vaccines were successful. The researchers are unsure whether this was a result of hand washing or the vaccine alone. What is this an example of?
A. Confounding
B. The placebo effect
C. Blinding
D. Replication
E. Bias

Answer 1

I think it’s B because usually when testing a new drug they would have some people have the drug but the other people wouldn’t and the doctors and the patients won’t know what they get

Answer 2

a

Confounding

Explanation:

There are two variables that could have lead it being successful, thus the variables are confounding.