Randomization is usually preferred to matching for establishing group equivalence because:
A) we may not know all the relevant variables to match
B) there is less confounding involved in randomization
C) randomization guarantees group equivalence
D) counterbalancing is not required with randomization

Question

Quizplus · Accepted Answer

Randomization is preferred because it helps control for both known and unknown confounding variables, whereas matching requires knowledge of all relevant variables, which may not be possible.

Randomization Is Usually Preferred to Matching for Establishing Group Equivalence