Longkathemer Longkathemer

01-11-2016
Health

contestada

Dr. keller wants to test the effect of a new anti-anxiety medication. he recruits a group of anxious patients and randomly assigns them to two groups. one group will receive his new medication and the other will receive a sugar pill. what is the second group called?

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kylebright3227 kylebright3227

03-11-2016

non anxious patients

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