The concept of nonequivalent groups means ____.
A) the researcher cannot control which people go into each group and cannot ensure that the groups are equivalent
B) the two groups have completely different characteristics
C) the researcher has randomly assigned people to groups so there is no guarantee that the groups are equal
D) the number of participants is different from one group to another

Question

Quizplus · Accepted Answer

Nonequivalent groups mean that the groups being compared are not equivalent, but the researcher did not randomly assign participants to groups, leading to the fact that the groups are not equal in their characteristics. Therefore, the answer is A. B, C, and D are incorrect because they do not accurately represent the concept of nonequivalent groups.

The Concept of Nonequivalent Groups Means ____