Table 4 Principal component analysis of temperament subscales (promax rotation)
| Â | I. | II. | III. | IV. |
|---|---|---|---|---|
Novelty seeking (NS) | ||||
 Exploratory excitability (NS1) | −0.47 | 0.40 | 0.22 | 0.03 |
 Impulsiveness (NS2) | 0.00 | 0.76 | −0.19 | −0.14 |
 Extravagance (NS3) | 0.03 | 0.66 | 0.02 | 0.20 |
 Disorderliness (NS4) | 0.14 | 0.79 | −0.09 | −0.24 |
Harm avoidance (HA) | ||||
 Anticipatory worry (HA1) | 0.83 | 0.16 | 0.27 | −0.12 |
 Fear of uncertainty (HA2) | 0.69 | −0.05 | 0.31 | 0.11 |
 Shyness with strangers (HA3) | 0.68 | −0.06 | −0.09 | 0.09 |
 Fatigability and asthenia (HA4) | 0.79 | 0.16 | −0.06 | 0.01 |
Reward dependence (RD) | ||||
 Sentimentality (RD1) | 0.25 | −0.05 | 0.76 | 0.08 |
 Attachment (RD3) | −0.21 | 0.20 | 0.29 | 0.55 |
 Dependence (RD4) | 0.11 | −0.24 | −0.14 | 0.84 |
 Persistence (PS) | −0.14 | −0.33 | 0.63 | −0.32 |
Explained variance (%) | 22.51 | 16.11 | 11.61 | 8.33 |
Explained total variance (%) | 58.56 | Â | Â | Â |