Which of the Following Is True Concerning the Non-Equivalent Control

Multiple Choice

Which of the following is true concerning the non-equivalent control group pretest-posttest design?

A) Comparisons can be made between groups on the pretest and the posttest.
B) Comparisons can be made within groups from the pretest to the posttest.
C) Because participants are not randomly assigned to groups,we cannot say that they are
D) all of the above