Question

A medical researcher prepares a number of doses of saline solution placebos. This is a mixture of mineral salts and water that is absolutely safe to administer and has no medical effects whatsoever. The likely purpose of these placebo doses is:

A. for use as treatments in a double blind experiment.
B. for testing as a cure for dehydration.
C. for a test of the Hawthorne effect.
D. for use on a control group in an experiment.
E. for use as placebos.

Answer 1

I say D, ?? is that right?

Answer 2

yes it is

Answer 3

e