Bland–Altman plots for (A) interobserver and (B) test-retest reliability, with difference between measurements (y axis) plotted against mean of the measurements.

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Presentation transcript:

Bland–Altman plots for (A) interobserver and (B) test-retest reliability, with difference between measurements (y axis) plotted against mean of the measurements (x axis). Bland–Altman plots for (A) interobserver and (B) test-retest reliability, with difference between measurements (y axis) plotted against mean of the measurements (x axis). The upper and lower dotted lines represent the 95% limits of agreement for the comparison while the middle dotted line represents the mean bias. The bias was −0.00 for interobserver measurement error and −0.04 s for test-retest. Sarah E Jones et al. Thorax 2013;68:1015-1020 Copyright © BMJ Publishing Group Ltd & British Thoracic Society. All rights reserved.