Multiple choice

In a study about beer on driving ability, the control group should be

  1. two pints of beer followed by a blood alcohol content test

  2. a high dosage of beer

  3. a driving test before and after drinking beer

  4. no beer at all

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In an experiment, the control group serves as a baseline for comparison and should not receive the experimental treatment. In this study, the control group should receive no beer to compare against those who consumed it.