Scientific method and variables review

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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 an independent variable (IV)?

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

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What is a dependent variable (DV)?

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

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What is a control group?

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A group in an experiment that does not receive the treatment or independent variable, used for comparison.

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What is an experimental group?

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The group in an experiment that receives the treatment or independent variable.

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What is qualitative data?

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Data that is descriptive and non-numerical, often used to describe characteristics or qualities.

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What is quantitative data?

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Data that is numerical and can be measured or counted.

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What is a hypothesis?

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A testable prediction about the relationship between the independent and dependent variables.

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What is a constant variable?

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Variables that are kept the same throughout an experiment to ensure that the test results are valid.

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What is the purpose of a scientific experiment?

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To test a hypothesis by manipulating variables and observing the effects.