Fig. 1From: The McMaster Toronto Arthritis patient preference questionnaire (MACTAR): a methodological study of reliability and minimal detectable change after a 6 week-period of acupuncture treatment in patients with rheumatoid arthritis a Bland–Altman plot assessing possible systematic disagreement between the two test occasions A1 and A2. b Bland–Altman plot assessing possible systematic disagreement between the two test occasions A1 and A3. c Bland–Altman plot assessing possible systematic disagreement between the two test occasions A2 and A3Back to article page