Table 1.
Descriptive Statistics and Correlations Among Variables of Interest (n = 52)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | M (SD) | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. Age in years | – | 7.87 (1.43) | ||||||||
| 2. IQ | −0.20 | – | 82.29 (20.68) | |||||||
| 3. ASD symptom level | −0.13 | −0.18 | – | 7.36 (2.02) | ||||||
| 4. EDA: NSCR reactivity | −0.05 | −0.19 | 0.05 | – | 0.00a (12.75) | |||||
| 5. EDA: SCL reactivity | −0.15 | −0.20 | 0.16 | 0.41** | – | 0.00a (2.07) | ||||
| 6. EDA reactivity (EDA-R) | −0.12 | −0.23+ | 0.13 | 0.84*** | 0.84*** | – | 0.00b (0.84) | |||
| 7. RSA reactivity (RSA-R) | −0.01 | −0.01 | 0.07 | 0.20 | −0.02 | 0.11 | – | 0.00a (0.78) | ||
| 8. Externalizing CBCL | −0.16 | 0.17 | −0.07 | −0.22 | −0.04 | −0.16 | 0.10 | 59.77 (8.35) | ||
| 9. ODD symptom level | −0.19 | 0.17 | −0.14 | −0.13 | −0.22 | −0.21 | 0.08 | 0.70*** | 2.52 (2.70) | |
| 10. Externalizing problems | −0.19 | 0.18 | −0.11 | −0.19 | −0.14 | −0.20 | 0.10 | 0.92*** | 0.92*** | 0.00b (0.92) |
a
These scores represent the unstandardized residuals from a regression.
b
These scores represent composites derived from standardized scores.
Abbreviations: ASD, autism spectrum disorder; EDA, electrodermal activity; NSCR, nonspecific skin conductance responses; SCL, skin conductance level; RSA, respiratory sinus arrhythmia; CBCL, child behavior checklist; ODD, oppositional defiant disorder.
**
P < 0.01
***
P < 0.001
+
P < 0.10.