A double-blind experiment of an allergy medication is being tested on 100 participants according to this diagram:
If Group 2 receives a full dose of the medication,what should Group 1's treatment consist of?
A)Blocked doses
B)A 50% dose
C)Stratified doses
D)A placebo
E)Randomized doses

Question

A double-blind experiment of an allergy medication is being tested on 100 participants according to this diagram: 
If Group 2 receives a full dose of the medication,what should Group 1's treatment consist of?
A)Blocked doses 
B)A 50% dose 
C)Stratified doses 
D)A placebo 
E)Randomized doses

Quizplus · Accepted Answer

In a double-blind experiment, both the researchers and the participants do not know who is receiving the medication and who is receiving the placebo. This is to prevent bias and ensure the accuracy of the results. Therefore, Group 1's treatment should consist of a placebo to serve as the control group for comparison with Group 2's full dose of the medication. Choice D, a placebo, is the most appropriate option for Group 1's treatment.

A Double-Blind Experiment of an Allergy Medication Is Being Tested