In a double blind experiment, which of the following is true?

A. The experiments are conducted in a specially darkened and soundproof room to eliminate the influence of chance environmental variables.
B. The experimenter does not know which subjects are in the treatment group.
C. The subjects are not told the purpose of the experiment.
D. Each experimental subject is assigned to exactly two blocks.
E. Neither the subjects nor the experimenter know who is in the treatment group.

Question

In a double blind experiment, which of the following is true?

 		A.	The experiments are conducted in a specially darkened and soundproof room to eliminate the influence of chance environmental variables.
 		B.	The experimenter does not know which subjects are in the treatment group.
 		C.	The subjects are not told the purpose of the experiment.
 		D.	Each experimental subject is assigned to exactly two blocks.
 		E.	Neither the subjects nor the experimenter know who is in the treatment group.

anonymous · Answer

This isn't really math, but as the son of a psychologist I can tell you that double-blind means nobody knows who receives placebo and who receives the treatment being tested.

anonymous · Answer

So would you say it's B? @Numb3r1

anonymous · Answer

No, neither the experimenter nor the subjects.

anonymous · Answer

E? Sorry, I CANNOT miss this one!! @Numb3r1

anonymous · Answer

Yup.

anonymous · Answer

THANK YOU SO MUCH!!! :D