Saturday, December 17, 2011

I don't get how Control and Control Group can be different?

A control group gets a placebo


A control is not exposed to experimental treatment





HUH?|||the placebo is not the experimental treatment. For example, the test group will get the drug and the control group will get a sugar pill. The sugar pill is a placebo, so the people in the control group are not exposed to the experimental treatment (the drug)

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