A controlled study when neither the patient nor the examiner is aware of whether the patient is receiving a treatment,is called a/an
A)statistical study.
B)double-blind study.
C)variable study.
D)adaptive study.
E)blind study.

Question

Quizplus · Accepted Answer

In a double-blind study,neither the patient nor the examiner is aware of whether the patient is receiving a treatment.

A Controlled Study When Neither the Patient nor the Examiner