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Table 4 Internal consistency for individual items on questionnaire

From: Cross-cultural adaptation and validity of the Chinese version of the Oxford elbow score

Item name and number Mean (SD) Corrected item-total correlation Cronbach’s alpha item deleted
1.Difficulty with lifting 2.71 (.84) .663 .893
2.Difficulty carrying bags 2.84 (.973) .621 .895
3.Difficulty washing all over 3.01 (.93) .581 .897
4. Difficulty dressing 3.21 (.70) .623 .895
5. Elbow problem “controlling your life” 2.34 (1.13) .710 .890
6. Elbow problem “on your mind” 2.47 (.99) .654 .893
7. Pain in Bed at Night 2.64 (1.14) .576 .899
8.Pain interfered with sleeping 3.19 (.89) .565 .897
9.Interfered with usual work/everyday activities 2.73 (.78) .673 .893
10.Limited leisure activities 2.76 (1.04) .492 .902
11.Worst pain 2.50 (.760) .755 .890
12.Usual pain 2.66 (.700) .762 .890
  1. SD standard deviation; table item reference [10]