A Researcher Wonders About the Memory Performance of People with Parkinson

question 34

Multiple Choice

A researcher wonders about the memory performance of people with Parkinson 's disease, so he recruits 25 patients and gives them the CVLT, a standard memory test. He then gives 25 college students the same test, and compares the performance. What experimental design has he used?

• A) one-group pretest-posttest design
• B) pretest-posttest control group design
• C) posttest only control group design
• D) posttest only with nonequivalent control group design