The Walking Man Approach to Interpreting the ROC curve and area under the ROC Curve

An accuracy study of a test that produces a wide range of results will often present a receiver operating characteristic (ROC) curve and report the area under the ROC curve (AUROC). The AUROC is a summary measure of how well the test discriminates between those with the condition or disease in question and those without it. A test that perfectly separates individuals with and without the condition has an AUROC of 1.0, and a test that doesn ’t separate them at all has an AUROC of 0.5. The AUROC is also the probability that a random individual with the condition will have a more abnormal test result than a random individual without the condition.

Source: Journal of Clinical Epidemiology - August 8, 2023 Category: Epidemiology Authors: Michael A. Kohn, Thomas B. Newman Tags: Commentary Source Type: research