Question

activity 5 of 6: blind and double - blind trials
a tale of two soaps
a pharmaceutical company wants to test a new kind of soap that they believe will treat acne. the test administrators will give the experimental group the medicinal soap. the control group, however, will instead receive ordinary soap. at the end of the two - week trial, if the experimental group shows clearer skin than the control group, the experiment
complete the following sentences.
for this experiment to be blind, neither test group can know...
select...
where the trial is being conducted.
whats in the medicinal soap.
which group is getting the placebo.
who the researchers are.

Explanation:

In a blind experiment, the participants (test group in this case) should not know which treatment they are receiving. Here, they should not know which group is getting the placebo (the control group with ordinary soap) to avoid bias. Knowing where the trial is conducted, what's in the medicinal soap (in a blind - not double - blind context they don't need to know the exact composition necessarily), or who the researchers are is not the key factor for a blind experiment.

Answer:

which group is getting the placebo.