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A great big deal of data, theories, and laws of science are derived from experiments. Specifically experiments help people to better understand and test theories within any science. For any experiment to be empirical, and therefore valuable, one must use the empirical scientific method. This involves the manipulation of one variable (the independent variable) to test for its effect on another variable (the dependent variable). That is, how does the dependent variable change as a function of changes in the independent variable? The experimental result is stated in terms of the functional relationship between the independent and dependent variable. Often, other variables change along wi