A test can have both a positive and negative predictive value.All the following elements are needed to compute the positive and negative predictive value of a test EXCEPT:

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Quizplus · Accepted Answer

The predictive value of a test is the probability that a positive result (positive predictive value)accurately indicates the presence of an analyte or a specific disease.The formula is:
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where PPV = positive predictive value
P = prevalence of disease being tested
Se = sensitivity of test
Sp = specificity of test

A Test Can Have Both a Positive and Negative Predictive