Examlex
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?
Violent Uprising
An aggressive and often armed rebellion against an authority or government.
Slavery
A system in which individuals are owned by others, deprived of personal freedom, and compelled to work without wages.
John Brown's Raid
An armed insurrection led by abolitionist John Brown in 1859, targeting the federal armory at Harpers Ferry, Virginia, intending to initiate a slave rebellion.
Harpers Ferry
A historic town in West Virginia known for John Brown's raid in 1859, an attempted armed slave uprising that played a significant role in heightening pre-Civil War tensions.
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