Miller and Levine 1.1 Review

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What is an independent variable?

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

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What is statistical analysis?

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Statistical analysis is a method used to interpret data and determine if there are significant differences between experimental groups.

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What is a theory in scientific terms?

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A theory is a well-tested explanation for a range of phenomena that is supported by a large body of evidence.

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What is the purpose of making observations in scientific methodology?

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Observations are made to gather information about the world, which can lead to questions and hypotheses.

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What is a hypothesis?

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A hypothesis is a proposed explanation for a phenomenon that can be tested through experimentation.

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What is a scientific law?

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A scientific law is a statement that describes a consistent and universal relationship observed in nature.

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What is the difference between a hypothesis and a theory?

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A hypothesis is a testable prediction, while a theory is a well-substantiated explanation based on evidence.

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What is a control group?

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A control group is a standard of comparison in an experiment that is not exposed to the independent variable.

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Why is it important to have a large sample size in experiments?

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A large sample size increases the reliability of the results and reduces the impact of random variation.

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What does it mean to revise a hypothesis?

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Revising a hypothesis involves modifying it based on new evidence or data obtained from experiments.