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Table 1 Reliability - Cronbach’s alpha and ICC

From: Reliability, validity and responsiveness of the German self-reported foot and ankle score (SEFAS) in patients with foot or ankle surgery

 

Reliabilität

Consistency

Test Mean t1 (SD)

Retest Mean t2 (SD)

Cronbach’s α t1

Cronbach’s α t2

ICC

SEFAS

pain

52.05 (19.29)

52.69 (19.33)

0.858

0.870

0.973 (0.960;0.981)

 

lof

47.13 (23.93)

48.54 (24.90)

0.747

0.790

0.954 (0.934;0.968)

 

os

45.92 (27.57)

47.49 (29.48)

0.223

0.354

0.959 (0.941;0.972)

 

total

48.37 (19.65)

49.68 (20.68)

0.881

0.889

0.970 (0.957;0.979)

  1. Reliability with test-retest reliability and internal consistency of the German SEFAS
  2. lof = limitation of function, o = others, ICC = interclass correlation coefficient, SD = standard deviation, t1 = first assessment, t2 = second assessment, CI = confidence interval