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

Home Economics
JAMB 2025

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

  • A. To reduce experimental error
  • B. To test the effect of multiple variables
  • C. To compare results to a baseline or standard
  • D. To increase sample size
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Correct Answer: Option C
Explanation

A control group provides a baseline or standard for comparison, allowing researchers to isolate the effect of a specific variable or intervention.

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