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Thinking Scientifically
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  1. You are part of a group that is testing a new drug to treat migraines—25% of the control group given a placebo, (a placebo is an inert substance that looks like the medication taken by the experimental group) and 46% of the experimental group given the drug reported an improvement in their symptoms. Would you conclude that this is an effective drug? What other variables might be present in the study participants that might have influenced which patients benefited from the new drug?
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