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Is the Bland-Altman plot method useful without inferences for accuracy, precision, and agreement?

Paulo Sergio Panse SilveiraJoaquim Edson VieiraJosé de Oliveira Siqueira
Published in: Revista de saude publica (2024)
Although easy to communicate, the widely cited and applied Bland and Altman plot method is often misinterpreted, since it lacks suitable inferential statistical support. Common alternatives, such as Pearson's correlation or ordinal least-square linear regression, also fail to locate the weakness of each measurement technique. It may be possible to test whether two techniques have full equivalence by preserving graphical communication, in accordance with Bland and Altman's principles, but also adding robust and suitable inferential statistics. Decomposing equivalence into three features (accuracy, precision, and agreement) helps to locate the sources of the problem when fixing a new technique.
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