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Estimating the Error Rates of Diagnostic Tests

S. L. Hui and S. D. Walter
Biometrics
Vol. 36, No. 1 (Mar., 1980), pp. 167-171
DOI: 10.2307/2530508
Stable URL: http://www.jstor.org/stable/2530508
Page Count: 5
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Estimating the Error Rates of Diagnostic Tests
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Abstract

It is often required to evaluate the accuracy of a new diagnostic test against a standard test with unknown error rates. If the two tests are applied simultaneously to the same individuals from two populations with different disease prevalences, then assuming conditional independence of the errors of the two tests, the error rates of both tests and the true prevalences in both populations can be estimated by a maximum likelihood procedure. Generalizations to several tests applied in several populations are also possible.

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