Essay
A researcher wishes to determine the quantity of caffeine intake required to improve alertness.The participants are divided into two groups,with one group receiving a low dose of caffeine and the other group receiving a high dose of caffeine.The subjects are all coffee drinkers who regularly consume more than 100 mg of caffeine per day.All participants,however,are required to abstain from caffeine intake for 12 hours prior to the study.Caffeine is addictive and therefore causes unpleasant side effects when the user stops consuming it.Is the addictiveness of caffeine a potential problem in this study? Why or why not?
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