If, in a pretest-posttest design, you administered the pretest and the posttest exactly the same way, you shouldn't have to worry about
A) history
B) instrumentation
C) mortality
D) testing

Question

Quizplus · Accepted Answer

Instrumentation refers to changes in the measurement tools or procedures over time. If the pretest and posttest are administered in the same way, instrumentation is not a concern.

If, in a Pretest-Posttest Design, You Administered the Pretest and the Posttest