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. 2020 May 12;21:294. doi: 10.1186/s12891-020-03308-z

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)

Items ICC (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 recommended 0.87 (0.80–0.92) 0.45/ 1.25 3.13 (SD = 1.25) 0–4
2. I forget to do my exercises 0.80 (0.69–0.87) 0.60/ 1.66 2.54 (SD = 1.34) 0–4
3. I do less exercise than recommended by my healthcare professional 0.92 (0.88–0.95) 0.47/ 1.30 2.83 (SD = 1.56) 0–4
4. I fit my exercises into my regular routine 0.86 (0.78–0.91) 0.49/ 1.36 3.42 (SD = 1.26) 0–4
5. I don’t get around to doing my exercises 0.91 (0.87–0.94) 0.41/ 1.13 3.25 (SD = 1.44) 0–4
6. I do most, or all, of my exercises 0.89 (0.83–0.93) 0.43/ 1.20 3.58 (SD = 1.30) 0–4
Total score 0.91 (0.86–0.94) 1.97/5.45 18.75 (SD = 6.56) 0–24

n = sample size; CI = confidence interval 95%; SD = Standard Deviation

SEM = SD√1 − ICC

MDC95 = 1·96 × SEM × √2