A Randomized Clinical Trial Is a Study Where ________

A randomized clinical trial is a study where ________

A) all subjects are treated the same to see what percentage of the total gets better, stays the same, or gets worse.
B) people are assigned to different types of treatment in alternating alphabetical order to see which treatment is best.
C) people go through different treatments in random order to see which one works best.
D) people are assigned to different groups by a flip of a coin, one-half to a treatment group and one-half to a seemingly identical placebo group.