The purpose of an experiment is to demonstrate that changes in one variable are responsible for causing changes in a second variable.

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The purpose of an experiment is to establish a cause-and-effect relationship between variables, demonstrating that changes in one variable (the independent variable) are responsible for causing changes in a second variable (the dependent variable). This is achieved through careful manipulation and control of the independent variable, while keeping all other factors constant.

The Purpose of an Experiment Is to Demonstrate That Changes