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DrKkhan

diagnostic test

5 posts in this topic

Which of the following properties of a test refers to its ability to correctly rule out a diagnosis?

A.Positive predictive value

B.Specificity

C.Negative predictive value

D.Sensitivity

E.Precision

what is the correct answer and why?

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Sensitivity

- (S N out highly sensitive test if NEGATIVE helps to rule out a disease) = true

positive/ total diseased = A/ A+C

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what about specificity???

Specificity

(S P In highly specific test if POSITIVE helps to rule in a disease) = true

negative / total non diseased = D/ B+D

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