A novel graphical evaluation of agreement.

ABSTRACT:

Background

The Bland-Altman plot with the limits of agreement has been widely used as an absolute index for assessing test-retest reliability or reproducibility between two measurements. We have observed that in the settings where the relative index such as concordance correlation coefficient (CCC) or intraclass correlation coefficient is employed, the limits of agreement approach may be inconsistent with the scaled index. Particularly, the broad width of the limits of agreement may indicate a lack of agreement when the two measurements are highly concordant but an acceptable difference is not known and the common variance of the data is large. This research aims to create a novel, CCC-based guidance for graphical evaluation of reproducibility or reliability.

Methods

The con

SUBMITTER: Kim J 

PROVIDER: S-EPMC8858529 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature