Question

**Test Reliability and Screening: What impact does a test
with high negative predictive value have on diagnostic test
interpretation?**

Answer #1

To answer this let us know what is negative predictive value

Negative predictive value is the probability that a subject really does not have a disease, that is the test is negative and the subject does not have a disease.

High negative predictive value has a positive impact on the diagnostic test because out of all those who have testing negative, high percentage of subjects are really negative.

Having a high negative predictive value is preferred because if this is low then there may be many subjects who have the disease but are tested negative which is really harmful for everyone.

Thank you!!!

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