For the clinical trial of a migraine drug, subjects were randomly divided into two groups. The first received an inert pill, while the second received the test medicine. Patients were not aware of which group they were in. After one month, patients reported how many migraines they experienced.
Which is the treatment group?
Which is the control group (if there is one)?
Is this study blind, double-blind, or neither?
Is this best described as an experiment, a controlled experiment, or a placebo-controlled experiment?
Lee et al., Math in Society, Statistics — Chapter 3 Review, Exercise 7