Mathematics, 19.11.2019 08:31 Nathaliasmiles

From 1990 to 2000, the american medical association conducted a study on patient fatigue and medication for depression. fatigue decreased with each increase in dosage, but then also decreased with every decrease in dosage. if it is assumed the patients knew a study was in progress, what is this an example of? (4 points) a the effect of a treatment unit b the placebo effect c the control group effect d sampling error e voluntary response bias

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From 1990 to 2000, the american medical association conducted a study on patient fatigue and medicat...