Which of the Following Is True of a Counterbalanced Crossover

Multiple Choice

Which of the following is true of a counterbalanced crossover design?

A) Participants are randomly assigned to different groups that vary in the treatment order.
B) Participants are given treatment after the conclusion of the posttest.
C) Participants are randomly assigned to different treatment conditions.
D) Participants are led to believe that a viable treatment is being rendered while it is actually ineffective.