Social Studies, 11.03.2020 01:51, libertycooper
As a part of a medical research study, a researcher exposes two groups of participants to either an actual painkiller or a sugar pill. The participants feel their pain being eliminated even with the sugar pill. In this case, the sugar pill is known as the
placebo
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Which of the following items would serve as a primary source for a historian studiying the american civil war
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The principle of checks and balances is based on the notion that
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