Multiple Choice
Dr.Gorton is studying the effect of exercise on cholesterol level.He first measures his patients' cholesterol level before recommending an exercise program and after one month of participating in an exercise program,he measures their cholesterol level again.What type of research design has Dr.Gorton employed?
A) Between groups design
B) One-group posttest-only design
C) Missing control group design
D) One group pretest-posttest design
Correct Answer:
Verified
Correct Answer:
Verified
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