Table 3. Correlation matrix, mean and standard deviation of the seven personality dimensions and all four WISC-IV indices and IQ score using twins #1.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | M | SD | N | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperament | Novelty Seeking (1) | −.16* | .03 | −.35** | −.32** | −.26** | .01 | −.06 | .09 | −.08 | −.06 | .01 | 22.67 | 5.94 | 186 | |
| Harm Avoidance (2) | .09 | −.23** | −.35** | −.09 | .09 | .05 | −.02 | .00 | −.01 | .04 | 15.70 | 6.27 | 186 | |||
| Reward Dependence (3) | −.04 | .16* | .49** | .12 | −.01 | .00 | −.08 | .07 | .02 | 13.53 | 3.90 | 186 | ||||
| Persistence (4) | .32** | .19** | .06 | .12 | .06 | .11 | .01 | .11 | 3.88 | 1.92 | 186 | |||||
| Character | Cooperativeness (5) | .47** | −.16* | .03 | .08 | .08 | .11 | .03 | 27.58 | 6.93 | 186 | |||||
| Self-transcendence (6) | .19* | .12 | .11 | .05 | .15* | .13 | 28.47 | 6.72 | 186 | |||||||
| Self-directedness (7) | −.15* | −.21** | −.18* | −.22** | −.20** | 11.79 | 5.57 | 186 | ||||||||
| Cognitive ability | Verbal Comprehension Index (8) | .56** | .52** | .36** | .80** | 95.18 | 23.18 | 182 | ||||||||
| Perceptual Reasoning Index (9) | .50** | .52** | .77** | 10.33 | 15.17 | 181 | ||||||||||
| Working Memory Index (10) | .40** | .71** | 92.92 | 13.72 | 182 | |||||||||||
| Processing Speed Index (11) | .63** | 92.38 | 14.11 | 181 | ||||||||||||
| Full Scale IQ (12) | 94.11 | 17.90 | 181 |
Notes.
*
Correlation is significant at the 0.05 level (2-tailed).
**
Correlation is significant at the 0.01 level (2-tailed).