Table 4.
Internal consistency for the PSS-10 and the PSS-4
Item | α |
Inter-item correlation |
ICC PSS-10 |
ICC PSS-4 |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PSS-10 | PSS-4 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | C1 | C2 | C1 | C2 | |
1 | 0.799 | - | 1.000 | 0.000* | 0.000* | 0.084 | 0.008* | 0.000* | 0.444 | 0.000* | 0.000* | 0.000* | - | - | - | - |
2 | 0.783 | 0.514 | 0.449 | 1.000 | 0.000* | 0.058 | 0.000* | 0.000* | 0.000* | 0.000* | 0.000* | 0.000* | - | - | - | - |
3 | 0.784 | - | 0.537 | 0.503 | 1.000 | 0.653 | 0.000* | 0.000* | 0.011* | 0.000* | 0.000* | 0.000* | - | - | - | - |
4 | 0.813 | 0.586 | -0.075 | 0.082 | 0.020 | 1.000 | 0.000* | 0.208 | 0.000* | 0.000* | 0.269 | 0.259 | - | - | - | - |
5 | 0.791 | 0.449 | 0.114 | 0.219 | 0.220 | 0.508 | 1.000 | 0.000* | 0.000* | 0.000* | 0.000* | 0.000* | - | - | - | - |
6 | 0.791 | - | 0.358 | 0.420 | 0.406 | 0.055 | 0.157 | 1.000 | 0.002* | 0.000* | 0.000* | 0.000* | - | - | - | - |
7 | 0.798 | - | 0.033 | 0.158 | 0.110 | 0.577 | 0.553 | 0.136 | 1.000 | 0.000* | 0.002* | 0.000* | - | - | - | - |
8 | 0.786 | - | 0.154 | 0.292 | 0.248 | 0.382 | 0.525 | 0.265 | 0.518 | 1.000 | 0.000* | 0.000* | - | - | - | - |
9 | 0.789 | - | 0.370 | 0.435 | 0.497 | 0.048 | 0.171 | 0.407 | 0.133 | 0.213 | 1.000 | 0.000* | - | - | - | - |
10 | 0.780 | 0.525 | 0.395 | 0.515 | 0.503 | 0.049 | 0.226 | 0.500 | 0.169 | 0.306 | 0.512 | 1.000 | - | - | - | - |
Total | 0.810 | 0.592 | - | - | - | - | - | - | - | - | - | - | 0.840 | 0.726 | 0.735 | 0.800 |
C1 | 0.832 | 0.680 | - | - | - | - | - | - | - | - | - | - | 1.000 | 0.236 | 1.000 | 0.182 |
C2 | 0.806 | 0.674 | - | - | - | - | - | - | - | - | - | - | 0.236 | 1.000 | 0.182 | 1.000 |
Inter-item correlation matrix with Pearson coefficients (lower matrix) and the level of significance (upper matrix).
PSS, Perceived Stress Scale; α, Cronbach alpha reliability coefficient; ICC, inter-component correlation; C1, component 1 (stress); C2, component 2 (coping).
p<0.05.