Exhibit 11-2 Refer to the following key:
R = random Assignment
X = experimental treatment
O = pretest or posttest observation
Refer to Exhibit 11-2.O X O represents the
A) pretest-posttest control group design
B) one-shot case study
C) posttest-only control group design
D) one-group pretest-posttest design

Question

Quizplus · Accepted Answer

The sequence O X O represents the one-group pretest-posttest design, where a single group receives both a pretest and a posttest after being exposed to an experimental treatment (X). The lack of a control group makes it a weak design, as there is nothing to compare the results to.

Exhibit 11-2 Refer to the Following Key