Control group

 A group participating in an experiment that receives no treatment, is called control group.

In the Department of Defense Dictionary of Military define control group as— personnel, ships, and craft designated to control the waterborne ship- to shore movement.

According to the American psychologist Lawrence Kohlberg, the conventional stage second of three broad levels of moral development beyond which most people do not mature. At this level people judge the Tightness or wrongness of an action in terms of what other people think and the dictates of authority.

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