Research Methods

Q: In a study of effects of alcohol on driving ability, the control group should be given

(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.
(e) :  None of the above
Answer:  no alcohol at all.
Explanation:  

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