|any group used as a control in a statistical experiment, esp a group of patients who receive either a placebo or a standard drug during an investigation of the effects of another drug on other patients|
|Main Entry:||control group|
|Part of Speech:||n|
|Definition:||in a test or trial, a group that does not receive the new treatment being studied and which is compared to the group that does receive the new treatment|
control group n.
A group used as a standard of comparison in a control experiment.