Exhibit 11-1 a Drug and a Placebo Are Compared for Treating

Exhibit 11-1 A drug and a placebo are compared for treating diabetes.A random half of the subjects receive the drug,while the other half receives the placebo.Blood glucose level is tested in all of the subjects several times a day.
Refer to Exhibit 11-1.What type of design does this study represent?

A) Single-factor within-subjects
B) Single-factor between subjects
C) One-group pretest-posttest
D) Posttest-only design with nonequivalent control groups

Correct Answer:

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