Figure 1From: Agreement, reliability and validity in 3 shoulder questionnaires in patients with rotator cuff disease Limits of agreement plot. Intraindividual differences (n = 55) between questionnaire responses on test and retest plotted against the mean of the sum scores. On each plot, the central line represents the mean of the intraindividual differences, and the flanking lines represent the 95% limits of agreement.Back to article page