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.

Question

Quizplus · Accepted Answer

Participants placed in a matched control group are paired with participants in the treatment group to reduce variance. This is done to ensure that the treatment and control groups are similar in all respects except for the treatment being tested. Option A is incorrect as participants in a matched control group are not their own controls, they are compared to a control group that is matched to them. Option B is not necessarily true, as treatment may not be made available to the control group. Option C is not a desirable situation and goes against ethical considerations of informed consent and deception.

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