Testing Of Accuracy Index (AUC) Of A Single Diagnostic Test

Question 1

AUC:ta voidaan haluta testata sen accuracya. Tällöin nollahypoteesi on AUC=AUC (0)
Mitä Z-score kertoo?

Answer 1

In testing, if the absolute observed value of Z-score is greater than its critical value at 95% confidence level (i.e. |Zobs|> 1.96), then the null hypothesis would be rejected and its p-value can be calculated by Z- distribution using observed Z- score.