Technical Report IX
Analysis of Diagnostic Accuracy Measures
T Chatzimichail
Abstract
This Demonstration shows plots of various diagnostic accuracy measures for diagnostic tests in normally distributed nondiseased and diseased populations. This is done for different values of disease prevalence, taking into account the means and standard deviations of the populations. The means and standard deviations are expressed in arbitrary units. The measures considered are the positive predictive value (PPV), the negative predictive value (NPV), the (diagnostic) odds ratio (OR), the likelihood ratio for a positive test result (LR+), and the likelihood ratio for a negative test result (LR−). The measures are plotted against the sensitivity or the specificity of the test, which can be selected by clicking the respective button.
First Published
2015-07-24
Revised
2026-06-05
DOI
Citation
Chatzimichail T. Analysis of Diagnostic Accuracy Measures. Technical Report IX. Hellenic Complex Systems Laboratory; 2015. https://doi.org/10.5281/zenodo.20560727
Source Notebook (Revised on 2026-06-05)
Terms of Use
The material made freely available by Hellenic Complex Systems Laboratory is subject to its Terms of Use.