Interobserver variability is often measured using statistical methods such as kappa statistics, which assess the level of agreement between observers. Other methods include:
Cohenâs Kappa: A statistical measure that accounts for the possibility of agreement occurring by chance. Intraclass Correlation Coefficient (ICC): Measures the reliability of measurements or ratings within a group of observers. Bland-Altman Plots: Visual methods to compare two measurements techniques by analyzing the agreement between them.