In a Nonequivalent Group Design, Why Do We Use the Terms

Multiple Choice

In a nonequivalent group design, why do we use the terms "treatment" and "comparison" instead of "experimental" and "control" groups?

A) Participants serve as their own comparison group; there is no true control group.
B) The nonequivalent group design is expressly used for clinical research, which is why the name changed from "experimental" to "treatment."
C) The researchers make "comparisons" to past research instead of having a "control" group.
D) The participants have not been randomly assigned to groups.