A drug researcher wishes to test a new pain medication for safety and effectiveness in treating the pain associated with arthritis. It is decided to test the drug on a treatment group of 100 severely disabled arthritis sufferers in a hospital ward. Everyone in the group is assigned a number. Patients with an even number received the drug. Patients with an odd number received a placebo.

Which of the following principles of experimental design are being followed in this experiment? Check all that apply.

A. Randomization
B. Blocking
C. Lurking
D. Replication
E. Blindness

I know

Question

A drug researcher wishes to test a new pain medication for safety and effectiveness in treating the pain associated with arthritis. It is decided to test the drug on a treatment group of 100 severely disabled arthritis sufferers in a hospital ward. Everyone in the group is assigned a number. Patients with an even number received the drug. Patients with an odd number received a placebo.

Which of the following principles of experimental design are being followed in this experiment? Check all that apply.

A. Randomization 
B. Blocking 
C. Lurking 
D. Replication 
E. Blindness 

I know

anonymous · Answer

D, for sure. but are there any others?

anonymous · Answer

Single-Blind, my mistake. Because the doctor is aware of who is taking what, and therefore may be biased to results. Double-Blind experiments are more efficient, but in short, the answer is D.