What is the primary purpose of a control group in a scientific experiment?

Multiple choice question for Introduction to Psychology. Select an option, then review the explanation below.

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It facilitates the creation of mathematical models.It serves as a baseline for comparing the results of the experimental group.It ensures all outside variables are completely removed.It is optional and not essential to the experiment.It increases the sample size for better data accuracy.

Explanation

The control group provides a standard for comparison, allowing researchers to observe the effects of the independent variable by contrasting it with the experimental group. This helps isolate the impact of the variable being tested.

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What is the primary purpose of a control group in a scientific experiment?

Explanation

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