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. 2021 Feb 24;4:36. doi: 10.1038/s41746-021-00401-y

Fig. 8. Outlier adjustment procedure for test sittings with two trials.

Fig. 8

a Score differences and means for test sittings with two trials are shown on a mixed-effects Bland–Altman plot (HV = 33; MS = 119). The limits of agreement are −11.24 and 10.85, and the mean difference is −0.19. Sittings with differences that fall outside of the limits of agreement, indicated by blue and orange points, are considered to have one trial that is an outlier. b In the sittings with outlier trials, the lower performing trial’s score is increased to reach the limits of agreement thresholds. c The original mixed-effects Bland–Altman plot, now shown with the outlying differences after score adjustment.