Adimari, Gianfranco and Chiogna, Monica (2009) Simple nonparametric condence regions for the evaluation of continuous-scale diagnostic tests. [Working Paper] WORKING PAPER SERIES, 5/2009 . , PADOVA (Inedito)
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The evaluation of the ability of a diagnostic test to separate diseaded from non-diseaded subjects is a crucial issue in modern medicine. The accuracy of a continuous-scale test, at a chosen cut-off level, can be measured by its sensitivity and specificity, i.e. by the probabilities that the test correctly identifies the diseaded and non-diseaded subjects, respectively. In practice, sensitivity and specificity of the test are unknown. Moreover, the cut-o level to use is also generally unknown, in that no preliminary indications driving its choice could be available.
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