Which of these is a potential problem with a matched-groups design for ANOVA?
A) Participant loss in one group can cause increase in participants overall.
B) We may not be aware of all of the important variables of interest.
C) Time commitment for participants is low.
D) Statistical power is reduced.

Question

Quizplus · Accepted Answer

Matched-groups designs in ANOVA aim to control for participant differences by matching participants across groups on certain variables. However, it's often challenging to identify and match on all relevant variables, which can leave uncontrolled variables that affect the outcome, hence B is a potential problem.

Which of These Is a Potential Problem with a Matched-Groups