Table 2.
Rotated Structure Matrix for PCA with Varimax rotation of a three component (PSS-10) questionnaire*
| Component | |||
|---|---|---|---|
| 1 | 2 | 3 | |
| PSS 1 felt upset because of something that happened unexpectedly? | 0.792 | 0.112 | 0.040 |
| PSS 2 felt unable to control the important things in your life? | 0.668 | 0.320 | 0.007 |
| PSS 3 felt nervous and “stressed”? | 0.737 | 0.282 | 0.166 |
| PSS 4 felt confident about your ability to handle your personal problems? | −0.627 | 0.326 | −0.033 |
| PSS 5 things were going your way? | 0.083 | −0.121 | 0.907 |
| PSS 6 felt could not cope with all the things that you had to do? | 0.61 | 0.515 | 0.030 |
| PSS 7 felt able to control irritations in your life? | 0.23 | 0.340 | 0.632 |
| PSS 8 felt you were on top of things? | −0.17 | 0.478 | 0.629 |
| PSS 9 angered because of things that were outside of your control? | 0.078 | 0.710 | 0.109 |
| PSS 10 felt difficulties were piling up so high that you could not overcome them? | 0.342 | 0.636 | 0.152 |
*Varimax rotation with Kaiser Normalization. PCA - Principal component analysis, PSS - Perceived stress scale