Control Variable: Definition, Meaning, and Examples

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Control Variable Definition

A variable that is kept constant or unaltered in order to prevent its influence on the outcome, and therefore, may be used to check the behaviour of independent and dependent variables.

Control variables are necessary in scientific studies to ensure that the results are legitimate.

For example, in a Boyle’s law experiment, the temperature must be kept constant in order for the results to be considered legitimate.

Control Variable Citations


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