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 a scientific 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 changes in the independent variable.

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What is a control in an experiment?

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A control is a standard against which the results of an experiment are compared. It is the part of the experiment that remains constant.

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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 a hypothesis?

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

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What is the scientific method?

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The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is a variable in an experiment?

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A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

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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.

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What is replication in scientific experiments?

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Replication is the repetition of an experiment to confirm findings and ensure reliability.

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What is a sample size?

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Sample size refers to the number of subjects or observations used in an experiment, which affects the reliability of the results.