Independent/Dependent Variables flashcard 12/19

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What is an independent variable?

Back

The independent variable is the one factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

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What is a dependent variable?

Back

The dependent variable is the factor that is measured or observed in an experiment, which changes in response to the independent variable.

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What is a control variable?

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Control variables are factors that are kept constant throughout an experiment to ensure that the results are due to the independent variable.

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In an experiment, what does it mean to have a hypothesis?

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

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Why is it important to have a control group in an experiment?

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A control group provides a baseline for comparison, helping to determine the effect of the independent variable.

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What is the purpose of conducting an experiment?

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The purpose of conducting an experiment is to test a hypothesis and determine the cause-and-effect relationship between variables.

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How do you identify the independent variable in a scientific question?

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The independent variable is usually the factor that is changed or controlled by the experimenter.

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How do you identify the dependent variable in a scientific question?

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The dependent variable is usually the outcome that is measured in the experiment.

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What is the relationship between independent and dependent variables?

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The independent variable is manipulated to observe its effect on the dependent variable.

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Can there be more than one independent variable in an experiment?

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While it is possible to have multiple independent variables, it is best to test one at a time to clearly understand its effect.