Experimental Design

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What is an independent variable?

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

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What is a dependent variable?

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

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What is a hypothesis?

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A hypothesis is a testable statement or prediction about the relationship between two or more variables.

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What is a control in an experiment?

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A control is a constant factor in an experiment that does not change, allowing for a fair test.

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What does it mean to ask a question in scientific research?

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Asking a question is the first step in the scientific method, where a researcher identifies a problem or curiosity to investigate.

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What is the purpose of an experiment?

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The purpose of an experiment is to test a hypothesis by manipulating variables and observing the outcomes.

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What is data in the context of an experiment?

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Data refers to the information collected during an experiment, which can be quantitative (numbers) or qualitative (descriptions).

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What is the scientific method?

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The scientific method is a systematic process used for scientific investigation, including steps like observation, hypothesis formation, experimentation, and conclusion.

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What is a variable in an experiment?

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A variable is any factor that can change in an experiment, affecting the results.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.