Scientific Method & Variables

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What is the Scientific Method?

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A systematic process used for scientific investigation, involving observation, hypothesis formulation, experimentation, and conclusion.

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What is a dependent variable?

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The variable that is measured or observed in an experiment; it is affected by changes in the independent variable.

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What is an independent variable?

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The variable that is changed or controlled in an experiment to test its effects on the dependent variable.

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What is a hypothesis?

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A testable prediction about the relationship between two or more variables.

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What is the purpose of a control group in an experiment?

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To provide a baseline for comparison, ensuring that the results are due to the independent variable.

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What does it mean for an experiment to be valid?

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The results are credible and can be trusted, often achieved by repeating the experiment and having others replicate it.

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What is the first step in the scientific method?

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Identifying a question or problem that needs to be investigated.

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What is an outcome variable?

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Another name for the dependent variable; it is the result that is measured in an experiment.

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Why is it important to replicate experiments?

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To verify results and ensure that findings are consistent and reliable.

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What is a testable question?

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A question that can be answered through experimentation and observation.