Table 3 Item descriptive statistics, and internal consistency with Cronbach’s α and Donald’s ω values of the Italian version of the BIF.
Item | Mean % (± SD) | Item-to-total correlation | Cronbach’s alpha (α ) if item deleted | Donald’s omega (ω) if item deleted |
|---|---|---|---|---|
1 | 73 (± 4.43) | 0.326 | 0.854 | 0.855 |
2 | 79 (± 4.07) | 0.386 | 0.852 | 0.853 |
3 | 55 (± 4.98) | 0.399 | 0.852 | 0.853 |
4 | 45 (± 4.99) | 0.358 | 0.853 | 0.854 |
5 | 38 (± 4.87) | 0.460 | 0.850 | 0.851 |
6 | 77 (± 4.24) | 0.307 | 0.854 | 0.856 |
7 | 47 (± 5.00) | 0.456 | 0.850 | 0.851 |
8 | 80 (± 3.99) | 0.395 | 0.852 | 0.853 |
9 | 68 (± 4.66) | 0.421 | 0.851 | 0.852 |
10 | 60 (± 4.91) | 0.472 | 0.849 | 0.850 |
11 | 36 (± 4.82) | 0.475 | 0.849 | 0.851 |
12 | 76 (± 4.26) | 0.482 | 0.849 | 0.850 |
13 | 83 (± 3.79) | 0.277 | 0.855 | 0.856 |
14 | 41 (± 4.93) | 0.484 | 0.849 | 0.850 |
15 | 58 (± 4.94) | 0.464 | 0.849 | 0.851 |
16 | 83 (± 3.76) | 0.481 | 0.850 | 0.850 |
17 | 51 (± 5.01) | 0.495 | 0.848 | 0.850 |
18 | 68 (± 4.67) | 0.512 | 0.848 | 0.849 |
19 | 67 (± 4.71) | 0.285 | 0.855 | 0.856 |
20 | 92 (± 2.64) | 0.282 | 0.855 | 0.856 |
21 | 56 (± 4.97) | 0.390 | 0.852 | 0.853 |
22 | 36 (± 4.80) | 0.197 | 0.858 | 0.859 |
23 | 50 (± 5.01) | 0.472 | 0.849 | 0.851 |
24 | 50 (± 5.01) | 0.400 | 0.852 | 0.853 |
25 | 38 (± 4.87) | 0.458 | 0.850 | 0.851 |
Recommended values | ≥ 0.250 | < α | < ω | |
