Which of the Following Is True of Participants Placed in a Matched

Multiple Choice

Which of the following is true of participants placed in a matched control group?

A) The participants serve as their own control to minimize error variance caused due to imperfect matching.
B) Treatment is made available to the participants after the posttests after careful ethical consideration.
C) The participants are led to believe that a viable treatment is being rendered even if it is actually ineffective.
D) The participants are paired with participants in the treatment group to reduce variance.