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Controlled Variables

Definition

Controlled variables, also called constant variables, refer to factors in an experiment that remain consistent throughout all conditions. By keeping these factors unchanged, researchers can isolate the effects of the independent variable on the dependent variable.

Analogy

Think of controlled variables as "referees" in a game. Just like referees ensure that all players follow the same rules and conditions, controlled variables ensure that all aspects of an experiment remain constant, allowing for accurate comparisons.

Related terms

Dependent Variables: Dependent variables are the outcomes or results that are being measured or observed in an experiment. They depend on the independent variable and can change as a result of its manipulation.

Independent Variables: Independent variables are factors or conditions that researchers manipulate or change in an experiment. They have a direct effect on the dependent variable and allow researchers to observe cause-and-effect relationships.

Extraneous Variables: Extraneous variables are additional variables that may unintentionally influence the results of an experiment if not properly controlled. They need to be identified and minimized to ensure accurate conclusions.