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1218 - PSY3215 - exam 3 question seven

Melinda conducts a study in which some participants receive an antidepressant, others receive a sugar pill that they think is an antidepressant, and the rest receive nothing at all. She finds that both the antidepressant group and the sugar pill group report being less depressed than the control group. Melinda has conducted a(n) _____________ study and the results for the sugar pill group are likely due to a ____________ effect.