Which of the following is true of covert naturalistic studies?A.The subjects are split into two groups: a control group and an experimental group.B.The studies of the study are all given a placebo.C.The subjects of the study are required to sign an informed consent.D.The subjects of the study don't know they are being observed.

Respuesta :

If you do an experiment you have to have two groups your control group and your experimental group. So A would be your answer

Answer:

A

Explanation: