control group

(noun) A group in an experiment that is not exposed to the treatment (the independent variable).

Example: The control group was given a placebo pill while the treatment group was given the medication being tested.

Audio Pronunciation: (con┬Ětrol group)

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Usage Notes:

  • Plural: control groups
  • Typically, experiments require an experimental group (exposed to independent variable) and a control group (not exposed to independent variable).
  • Control group used in a sentence: My statistics teacher separated our class into two groups to test different study methods. My group was the control group and the other the experimental group.