Social Studies, 14.02.2020 00:18 tinalmath

A study at Yale Medical School investigated treatments for chronic cocaine abusers. Of the 72 subjects, all cocaine users who wanted to quit, 24 were assigned at random to each of three medications: (a) desipramine, (b) lithium, (c) a placebo. After six weeks the subjects reported whether they had stayed off cocaine. The explanatory variable in the Yale study is:

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A study at Yale Medical School investigated treatments for chronic cocaine abusers. Of the 72 subjec...