In a study of effects of alcohol on driving ability, the control group should be given:
Correct answer: D. no alcohol at all
- A. a high dosage of alcohol
- B. one-half the dosage given the experimental group
- C. a driving test before and after drinking alcohol
- D. no alcohol at all
Explanation
A control group should not receive the independent variable, so it should receive no alcohol while the experimental group receives alcohol. This provides a baseline for judging alcohol’s effect on driving.
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