One immunochromatography test (ICT)for influenza has a test sensitivity of 0.50 and a specificity of 0.90.If 50 individuals known to be infected with influenza were tested using this particular ICT,how many of the tests would be expected to be false negatives?

Question

Quizplus · Accepted Answer

The test sensitivity of 0.50 means that the test correctly identifies 50% of the true positive cases. So out of the 50 individuals who are infected with influenza, the test would correctly identify 25 of them as positive. The remaining 25 individuals would be incorrectly identified as negative (false negatives). Therefore, the answer is A) 25.

One Immunochromatography Test (ICT)for Influenza Has a Test Sensitivity of 0.50