Table 4 Item internal consistency (IIC), item discriminant validity (IDV), percentage of missing values (%MV), Cronbach’s alpha (alpha), intra-class correlation coefficient (ICC) of the APAIS dimension scores and global index (mean +/- SD), and inlier-sensitive fit (INFIT)
From: Validation of the French version of the Amsterdam preoperative anxiety and information scale (APAIS)
Dimension/APAIS dimensions | Mean ± SD | Floor | Ceiling | MV (%) | IIC | IDV | Alpha | INFIT |
|---|---|---|---|---|---|---|---|---|
Anxiety about anaesthesia (2) | 3.3 ± 1.8 | 43.1 | 1.7 | 1.7 | 0.67 | 0.16-0.61 | 0.80 | 0.94-1.09 |
Anxiety about surgery (2) | 3.9 ± 2.3 | 40.2 | 2.9 | 0.6 | 0.72 | 0.27-0.61 | 0.84 | 0.98-1.01 |
Desire for information (2) | 5.7 ± 2.3 | 11.5 | 6.9 | 2.9 | 0.61 | 0.16-0.36 | 0.76 | 0.96-1.00 |
Global anxiety | 7.2 ± 3.7 | NA | NA | 5.1 | NA | NA | NA | NA |