Experimental Design

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What is Experimental Design?

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Experimental design is the process of planning an experiment to ensure that it can effectively test a hypothesis by controlling variables and ensuring valid results.

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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 or independent variable, allowing for comparison against the experimental group.

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What is an Independent Variable?

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An independent variable is the 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?

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A 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 does it mean to Standardize Variables?

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Standardizing variables means keeping certain factors constant throughout an experiment to ensure that the results are due to the independent variable alone.

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What is a Hypothesis?

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A hypothesis is a testable statement or prediction about the relationship between two or more variables.

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What is the purpose of a Control in an Experiment?

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The purpose of a control is to provide a baseline for comparison, helping to isolate the effects of the independent variable.

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What is the difference between Qualitative and Quantitative Data?

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Qualitative data is descriptive and relates to characteristics, while quantitative data is numerical and can be measured.

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What is a Scientific Question?

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A scientific question is a question that can be answered through experimentation and observation, typically involving measurable variables.

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What is the significance of Replication in Experiments?

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Replication is the repetition of an experiment to confirm results and ensure reliability and validity.