Observational Studies and Experiments Review

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What is an observational study?

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An observational study is a research method where the researcher observes and records behavior without manipulating any variables.

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What is an experiment?

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An experiment is a research method where the researcher imposes a treatment or intervention to observe its effects on a dependent variable.

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What is the main difference between observational studies and experiments?

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The main difference is that experiments involve imposing a treatment, while observational studies do not.

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What is a control group?

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A control group is a group in an experiment that does not receive the treatment and is used as a baseline for comparison.

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What are constants in an experiment?

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Constants are the parts of an experiment that must be kept the same to ensure that the results are valid.

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Why is random assignment important in experiments?

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Random assignment is important because it helps reduce bias and ensures that the groups are comparable.

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What is a dependent variable?

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The dependent variable is the outcome that is measured in an experiment, which is affected by the independent variable.

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What is an independent variable?

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

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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 purpose of a case study?

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A case study is an in-depth analysis of a single subject or group to explore complex issues in real-life contexts.