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Principal component analysis of the residuals showing loadings on the first component extracted
| Item | Loading |
| CES-D3 | -0.411 |
| CES-D5 | -0.406 |
| CES-D1 | -0.399 |
| CES-D13 | -0.218 |
| CES-D9 | -0.198 |
| CES-D7 | -0.102 |
| CES-D20 | -0.067 |
| CES-D6 | 0.012 |
| CES-D14 | 0.110 |
| CES-D15 | 0.115 |
| CES-D19 | 0.239 |
| CES-D10 | 0.670 |
| CES-D17 | 0.763 |
