Figure 2. Bland-Altman plots (measured in degrees) depict differences in goniometer scoring between test and retest, plotted against mean scores for each participant. The dashed line shows the mean difference score (2 SDs), and the solid line represents the 95% upper and lower limits. A, Examiner 1: differences in scoring  =  −0.5 ± 8.4, upper limit  =  16.3, lower limit  =  −17.4. B, Examiner 2: differences in scoring  =  −3.1 ± 9.9, upper limit  =  16.8, lower limit  =  −23.0. C, Examiner 3: differences in scoring  =  −0.6 ± 8.0, upper limit  =  15.4, lower limit  =  −16.5.