Table 1.
Sample means, standard deviations, and correlations.
| Variable | M (SD) | Range | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|
| 1. Depressive severity intercept | 7.27 (2.80) | 3.14–17.54 | - | |||||
| 2. Depressive severity linear slope | −0.51 (0.34) | −1.42-.27 | r=−.47* | - | ||||
| 3. Age at scan, years | 19.28 (0.44) | 18.21-20.37 | r=.01 | r=.07 | - | |||
| 4. Race | A/MR (N)=82 |
t=−2.19* A/MR>E |
t=2.60* E>A/MR |
t=2.35* | - | |||
| 5. Verbal IQ | 97.86 (18.08) | 51-141 | −.14 | .43* | r =.15 |
t=6.41* E>A/MR |
- | |
| 6. Head movement (mean volume-to-volume displacement, mm) | 1.09 (0.18) | 0.74-1.67 | −.06 | −.04 | r=−.1 | t=−1.35 | r=0 | - |
| 7. Years of public assistance receipt | 5.17 (4.56) | 0-13 | .19* | −.22* | r=.01 |
t=−6.21* A/MR>E |
r=−.55 | r=.01 |
Note: N=115.
*
indicates p<.05. M and SD are used to represent mean and standard deviation, respectively. A/MR=African American and Mixed Race; E=European American. T values are indicated for tests of race differences. Pearson correlations among continuous variables are indicated using r.