Control   In science, a control is a system for which the expected change or outcome is well known and is measured or observed for the purpose of comparing it to a treatment group in scientific research. The control is used as a standard to compare or quantify change in the treatment. For more information, see: Research Methods: Experimentation

Used in the following modules: Adaptation, Charles Darwin II, Data: Statistics, Data: Uncertainty, Error, and Confidence, DNA I, Gravity, Research Methods: Comparison, Research Methods: Experimentation, Research Methods: Modeling, Scientific Communication: Peer Review, Scientific Communication: Understanding Scientific Journals and Articles, Scientific Ethics, Scientists and the Scientific Community, The Carbon Cycle, Using Science News in Teaching