In the simplest type of pretest-posttest design, a behavior is measured ______.
A) once
B) twice
C) three times
D) four times

Name: In the simplest type of pretest-posttest design, a behavior is measured ______. A) once B) twice C) three times D) four times
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In a pretest-posttest design, a behavior is measured twice: before and after the intervention. This allows for comparison of the behavior before and after the intervention to determine if there was a change.

In the Simplest Type of Pretest-Posttest Design, a Behavior Is