Several statistical methods are employed to assess measurement variability:
- Intraclass Correlation Coefficient (ICC): This coefficient measures the reliability of measurements or ratings. It assesses the consistency or reproducibility of quantitative measurements made by different observers measuring the same items. - Bland-Altman Plot: This graphical method compares two clinical measurements by plotting the differences against the averages of the measurements. It helps identify any systematic bias and the limits of agreement. - Coefficient of Variation (CV): The CV measures the extent of variability in relation to the mean of the population. It is useful for comparing the degree of variation between different datasets.
