Multiple Choice
Gary conducts a study to examine the effectiveness of an exercise program on weight loss. The experimental group must exercise for two hours per day for six months. The control group must exercise for 15 minutes per day for six months. Gary finds greater weight loss in the experimental group than the control group. Unfortunately, 60% of the participants in the experimental group dropped out of the study, compared to 10% of the control group participants. Gary has encountered what kind of problem?
A) Statistical regression
B) Instrumentation
C) Mortality
D) Maturation
Correct Answer:
Verified
Correct Answer:
Verified
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