Variables Make-up Flashcard

Front

What is an independent variable in an experiment?

Back

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

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What is a dependent variable in an experiment?

Back

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 are constant variables in an experiment?

Back

Constant variables are the factors that are kept the same throughout an experiment to ensure that the test is fair.

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What is a testable hypothesis?

Back

A testable hypothesis is a statement that can be supported or refuted through experimentation or observation.

Front

How does adding salt to water affect its boiling point?

Back

Adding salt to water typically raises the boiling point, contrary to the hypothesis that it decreases.

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What is the purpose of a control group in an experiment?

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The control group serves as a baseline to compare the effects of the independent variable, ensuring that the results are due to the variable being tested.

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What is the significance of having a large sample size in an experiment?

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A large sample size increases the reliability and validity of the results, reducing the impact of outliers.

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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 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 role does peer review play in scientific research?

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Peer review helps ensure the quality and credibility of research by having experts evaluate the methodology and findings before publication.