User:Atcovi/StatsProject/Placebo Effect

 Drug–placebo differences in antidepressant efficacy increase as a function of baseline severity, but are relatively small even for severely depressed patients. This excerpt is from an experiment testing the effects of placebo treatments on depressed patients. Placebos are a "neutral" treatment that don't actually affect the dependent variable. In this study, we can see that the placebo effect only takes place with severely depressed patients and not slightly depressed patients - which is an odd conclusion.

Source: Initial Severity and Antidepressant Benefits: A Meta-Analysis of Data Submitted to the Food and Drug Administration

Page 17 »»»