Experimental Design

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What is Experimental Design?

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Experimental Design is a systematic method used to plan, conduct, and analyze experiments to test hypotheses and determine cause-and-effect relationships.

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What is a Control Group?

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A control group is a baseline group in an experiment that does not receive the treatment or intervention, allowing for comparison against the experimental group.

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What is an Independent Variable?

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The independent variable is the factor that is intentionally changed or manipulated by the experimenter to observe its effect on the dependent variable.

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What is a Dependent Variable?

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The dependent variable is the factor that is measured or observed in an experiment to assess the impact of the independent variable.

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What are Constants in an Experiment?

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Constants are the factors that remain unchanged throughout the experiment to ensure that the results are due to the independent variable.

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What is the purpose of a Hypothesis?

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

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What is the difference between a Control Group and an Experimental Group?

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The control group does not receive the experimental treatment, while the experimental group does, allowing for comparison of results.

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Why is Randomization important in Experimental Design?

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Randomization helps eliminate bias by ensuring that each participant or subject has an equal chance of being assigned to any group.

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What is a Trial in an Experiment?

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A trial is a single repetition of an experiment, which helps to ensure that results are reliable and can be replicated.

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What is the significance of Replication in Experiments?

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Replication involves repeating an experiment to confirm results and ensure that they are consistent and not due to chance.