In an experiment, what is the independent variable?

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Multiple Choice

In an experiment, what is the independent variable?

Explanation:
The main idea is that the independent variable is the factor you deliberately change to test its effect on the outcome. You set and vary this value on purpose to see how it influences what you observe. The thing you measure in response is the dependent variable, and constants are kept the same to ensure any observed effect comes from the change you made. The equipment used is part of the setup, not the variable being tested unless you’re specifically studying how different equipment alters results. So describing the factor you change on purpose best captures the role of the independent variable.

The main idea is that the independent variable is the factor you deliberately change to test its effect on the outcome. You set and vary this value on purpose to see how it influences what you observe. The thing you measure in response is the dependent variable, and constants are kept the same to ensure any observed effect comes from the change you made. The equipment used is part of the setup, not the variable being tested unless you’re specifically studying how different equipment alters results. So describing the factor you change on purpose best captures the role of the independent variable.

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