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Table 2 Minimum and maximum score for EARS-Br items, mean score values, intraclass correlation coefficient (ICC), standard error of measurement (SEM) and minimally detectable change (MDC) of each question and total score of domains of the Brazilian Portuguese version of the Exercise Adherence Rating Scale (EARS-Br) (n = 108)

From: The Brazilian Portuguese version of the Exercise Adherence Rating Scale (EARS-Br) showed acceptable reliability, validity and responsiveness in chronic low back pain

ItemsICC (95% CI)
n = 83
SEM/ MDC
n = 108
Mean Value EARS-Br (SD)Minimum-maximum Value EARS-Br
1. I do my exercises as often as recommended0.87 (0.80–0.92)0.45/ 1.253.13 (SD = 1.25)0–4
2. I forget to do my exercises0.80 (0.69–0.87)0.60/ 1.662.54 (SD = 1.34)0–4
3. I do less exercise than recommended by my healthcare professional0.92 (0.88–0.95)0.47/ 1.302.83 (SD = 1.56)0–4
4. I fit my exercises into my regular routine0.86 (0.78–0.91)0.49/ 1.363.42 (SD = 1.26)0–4
5. I don’t get around to doing my exercises0.91 (0.87–0.94)0.41/ 1.133.25 (SD = 1.44)0–4
6. I do most, or all, of my exercises0.89 (0.83–0.93)0.43/ 1.203.58 (SD = 1.30)0–4
Total score0.91 (0.86–0.94)1.97/5.4518.75 (SD = 6.56)0–24
  1. n = sample size; CI = confidence interval 95%; SD = Standard Deviation
  2. SEM = SD√1 − ICC
  3. MDC95 = 1·96 × SEM × √2