A group of physicians tests a new drug for treating Attention Deficit Disorder (ADD). They randomly assign 40 children with ADD to the experimental and control groups (20 per group). They then measure the amount of time each group of ADD students attend to a task during a specified hour one week prior to the treatment group taking the new drug and during a specified hour one week after the treatment group takes the new drug. The physicians used what type of design to test the drug?
A) One-group posttest-only design
B) Pretest-posttest control-group design
C) Posttest-only design with nonequivalent groups
D) Nonequivalent posttest-only design

Question

Quizplus · Accepted Answer

The design used is a pretest-posttest control-group design because it involves measuring both groups before and after the treatment, allowing for comparison of changes due to the drug.

A Group of Physicians Tests a New Drug for Treating