A drug company wants to investigate to see whether its product prevents colds. O

Question

A drug company wants to investigate to see whether its product prevents colds. One group is given a bottle of medicine which the company produces. Another group is given a bottle of pure water, but resembling the bottle with real medicine. This experiment will be a double-blind experiment if the company investigator:

a. makes a list of the patients who are given the real medicine.

b. makes a list of the patients who are given the fake medicine.

c. is kept from knowing who gets one or the other of bottles.

d. is asking them to drink a lot of orange juice.

e. None of the others

Explanation / Answer

c. is kept from knowing who gets one or the other of bottles. an experiment will be a double-blind if the person taking what is being tested doesn't know if they are getting a real thing or a fake and the person given it out and doing the tested doesn't know what it is

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