A positive control is a sample known to give positive results for the given test. What is the purpose of a positive control?
A. Always give negative results
B. Give positive results even when the procedure is not optimized
C. Verify that the negative results are valid
D. Validate false-positive results
Answer (2)
A positive control is crucial in experiments as it confirms that the testing method works effectively by producing expected positive results. It provides validation, consistency, and a baseline for comparison in experimental design. This ensures research outcomes are reliable and meaningful. ;
A positive control is used in experiments to confirm that a test is functioning properly by yielding expected positive results. Its main purposes include validating the test method, ensuring consistency, and providing a reference point for comparison with other samples. The correct answer choice regarding the purpose of a positive control is option B: Give positive results even when the procedure is not optimized.
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