What is the difference between Experimental and Correlational Research?

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What is the difference between Experimental and Correlational Research?

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Experimental Research includes the systematic manipulation of 1 or more variables and how that manipulation of 1 variable affects other controlled variables studied. Experiments illustrate cause and effect relationships. Correlation Research uses statistical methods to examine the relationship between 2 or more variables and illustrates relationships (not cause) between variables which allow us to make predictions.