The systematic selection of subjects in research studies to ensure that the mean values of important subject variables are similar across groups is called
A) counterbalancing.
B) randomization.
C) matching.
D) blocking.
E) sampling.

Question

Quizplus · Accepted Answer

Matching is the process where subjects are systematically selected for research studies to ensure that the mean values of important variables are similar across groups, which helps in controlling for those variables.

The Systematic Selection of Subjects in Research Studies to Ensure