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Variables
Things which can vary or change.Experiments attempt to manipulate one variable, the independent variable, and measure the changes to the dependent variable.
The Experimenter attempts to control for extraneous Variables (noise or time of day) which could effect the dependent variable. If an Extraneous variable does have an effect on the Dependent Variable we call this a confounding variable.
Correlational analysis attempts to measure the relationship between two independent Variables (or co-variables).
