Figure 3From: Reproducibility of cervical range of motion in patients with neck painPlotted differences within rater A against the mean value of the first and second measurement for each patient for cervical flexion-extension, lateral flexion and rotation*. * Presented is the line of the mean difference (in the middle) and the limits of agreement (the two dotted outer lines corresponding with the +2 SD's or – 2 SD's of the mean difference between the 1st and 2nd rating by rater A)Back to article page