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Dr. West wants to know what kind of exercise makes people happiest. She randomly assigns participants to either a weight-lifting or cardio group. Each group
Dr. West wants to know what kind of exercise makes people happiest. She randomly assigns participants to either a weight-lifting or cardio group. Each group does the assigned exercise for 30 minutes. They then report on their mood on a scale of 1-10. What could Dr. West do to eliminate potential confounds in her experiment? Group of answer choices study only one type of exercise use the same room and exercise instructor for both groups let participants choose what type of exercise they want ahead of time have participants describe their emotions however they want instead of using a scale
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