Experimental element which is constant and unchanged
Also known as experimental constant · constant · experiment constant
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5 identifiers linking control variable across the web's reference databases
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A control variable in scientific experimentation is an experimental element which is constant (controlled) and unchanged throughout the course of the investigation. Control variables could strongly influence experimental results were they not held constant during the experiment in order to test the relative relationship of the dependent variable (DV) and independent variable (IV). The control variables themselves are not of primary interest to the experimenter.