Experimental Design

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What is a control in an experiment?

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A control is a standard for comparison in an experiment, which is not exposed to the experimental treatment.

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What is a dependent variable?

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The dependent variable is the variable that is measured in an experiment, often affected by changes in the independent variable.

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What is an independent variable?

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The independent variable is the variable that is manipulated or changed by the researcher in an experiment.

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What is a constant variable?

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A constant variable is a factor that remains unchanged throughout an experiment to ensure that the test results are valid.

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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 effects.

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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 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 the significance of replicating experiments?

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Replicating experiments is important to verify results and ensure reliability and validity of findings.

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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 role of a control group?

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The control group serves as a baseline to compare the effects of the independent variable in the experimental group.