+A **control group** is a fundamental element in [Experiment](/wiki/experiment) design, serving as a baseline for comparison. It experiences no manipulation of the independent [Variable](/wiki/variable) under investigation, allowing researchers to isolate and observe the true effect of a given treatment or intervention.
+## See also
+- [Experimental Group](/wiki/experimental_group)
+- [Scientific Method](/wiki/scientific_method)
+- [Hypothesis](/wiki/hypothesis)
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