Skip to main content

Table 2 The internal consistency of SC-IdFAI

From: Adaptation and psychometric evaluation of the simplified Chinese version of the identification of functional ankle instability questionnaire in Chinese-speaking patients with chronic ankle instability disorders

Items Corrected Item: total correlation a Cronbach’s α b
Overall scale 1.000 0.902
Factor 1 0.882 0.897
Item 5 0.780 0.885
Item 6 0.815 0.880
Item 7 0.743 0.891
Item 10 0.782 0.884
Factor 2 0.725 0.808
Item 2 0.605 0.899
Item 3 0.585 0.904
Item 4 0.678 0.892
Factor 3 0.813 0.721
Item 8 0.690 0.894
Item 9 0.759 0.887
  1. a Calculated by the Spearman’s correlation coefficient of the subscales or items with total score
  2. b The Cronbach’s α of each item is calculated the alpha value of overall scale if this item was deleted
  3. SC-IdFAI Simplified Chinese version of the Identification of Functional Ankle Instability questionnaire