Table 2.
Factor Loadings for Schedule for the Deficit Syndrome Symptoms
| Symptom | Avolition | Emotional Expression |
| Variance extracted (%) | 37.1 | 36.7 |
| Eigenvalue | 2.23 | 2.20 |
| Coefficient alpha (α) | 0.782 | 0.776 |
| Curbing of interests | .916 | |
| Diminished sense of purpose | .916 | |
| Diminished social drive | .607 | .388 |
| Restricted affect | .917 | |
| Diminished emotional range | .884 | |
| Poverty of speech | .383 | .641 |
Note: N = 52. Extraction: Principal component analysis with varimax rotation. Loadings <.35 are not printed for clarity. Bold indicates primary symptom loadings for each factor.