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Table 1 Results of the questionnaire validation

From: Cross cultural translation, adaptation and reliability of the Malay version of the Canadian Acute Respiratory Illness and Flu Scale (CARIFS)

Internal consistency Test re-test reliability (consistency) Inter rater reliability (agreement)
All items N = 18 Cronbach’s alpha = 0.703 Cronbach’s alpha if item deleted ICC p-value Kappa p-value
Q1 0.692 0.805 <0.001 0.551 <0.001
Q2 0.697 0.651 <0.001 0.538 <0.001
Q3 0.687 0.775 <0.001 0.517 <0.001
Q4 0.682 0.628 <0.001 0.342 0.001
Q5 0.679 0.855 <0.001 0.590 <0.001
Q6 0.678 0.756 <0.001 0.528 <0.001
Q7 0.684 0.724 <0.001 0.530 <0.001
Q8 0.698 0.655 <0.001 0.464 <0.001
Q9 0.680 0.794 <0.001 0.517 <0.001
Q10 0.691 0.885 <0.001 0.643 0.001
Q11 0.688 0.816 <0.001 0.466 <0.001
Q12 0.691 0.649 0.04 0.632 0.011
Q13 0.679 0.846 <0.001 0.466 <0.001
Q14 0.688 0.651 <0.001 0.447 <0.001
Q15 0.682 0.806 <0.001 0.463 <0.001
Q16 0.713 0.729 <0.001 0.467 <0.001
Q17 0.686 0.887 <0.001 0.600 <0.001
Q18 0.684 0.970 <0.001 0.808 <0.001