A Positive Agreement Rate

September 8, 2021

The random nature of the uncertainty means that for every 100 patients in a study that was deemed negative by the test, we expect 5% to rank poorly, but it could be that they are actually poorly ranked in Study 10 or none (although both alternatives are relatively unlikely). The rate of poor ranking of a study can be estimated in several ways, for example. B by repeated testing of samples, compared to another test with probably higher accuracy or the sequence of an expected error rate from other sources of information. Note that positive and negative forecast values can only be estimated with data from a cross-sectional study or other population-based study that provides valid prevalence estimates.. . . .

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