A Pretest-posttest design (OXO) is considered to be a(n) ____.
A) experiment
B) nonexperimental design
C) nonequivalent groups quasi-experimental design
D) time series quasi-experimental design

Question

Quizplus · Accepted Answer

A Pretest-posttest design without a control group (indicated by OXO, where O represents observation or pretest/posttest and X represents the intervention) is considered a nonexperimental design because it lacks random assignment and control, key features of true experimental designs.

A Pretest-Posttest Design (OXO) Is Considered to Be A(n) ____