Positive Control

A positive control is an element used in experiments to ensure that the testing process works correctly. It involves including a known factor that should produce a specific, expected result if everything is functioning properly. This helps confirm that the test conditions are accurate and reliable. For example, in a medical test for a disease, a positive control might contain a known positive sample, showing that the test can detect the disease when it is present. This validation helps scientists trust the test results and identify any issues with the procedure.