Published Online: 15 JAN 2013
Copyright © 2002 John Wiley & Sons, Ltd
Encyclopedia of Environmetrics
How to Cite
Greenland, S. 2013. Control Group . Encyclopedia of Environmetrics. 1.
- Published Online: 15 JAN 2013
A control group is a group of subjects who are given a control (reference) exposure, such as a placebo or no exposure, to provide a baseline against which to measure effects of the exposure in an exposed group of subjects.