A group of physicians tests a new analgesic on their patients with chronic pain problems. They obtain patient ratings of pain, administer the new drug for a week, and then obtain pain ratings again
They find that pain ratings are down 10 points at their second observation. This is an example of which experimental design.
a. one-group posttest-only design
b. one-group pretest-posttest design
c. non-equivalent posttest-only design
d. non-equivalent before-after (pretest-posttest) design
B
Political Science
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