Table 1.
Descriptive statistics for effortful control, substance use, and demographic variables
| M / % | SD / N | Range | |
|---|---|---|---|
| Age | 19.48 | 1.30 | 18 – 25 |
| Sex | 71.6% | 1295 | 0 – 1 |
| Race | 78.3% | 1416 | 0 – 1 |
| FES | 4.20 | .71 | 1.00 – 5.00 |
| BIS | 3.12 | .48 | 1.29 – 4.00 |
| BAS | 3.11 | .39 | 1.73 – 4.00 |
| ATQ-IC | 4.21 | .86 | 1.00 – 6.57 |
| ATQ-AT | 3.83 | 1.03 | 1.00 – 7.00 |
| ATQ-AC | 4.72 | .95 | 1.29 – 7.00 |
| Alcohol frequency | 3.77 | 1.19 | 1.00 – 6.00 |
| Alcohol initiation | 2.55 | .97 | 1.00 – 7.00 |
| Alcohol 30 day use | 2.95 | 1.38 | 1.00 – 7.00 |
| Marijuana frequency | 2.09 | 1.36 | 1.00 – 6.00 |
| Marijuana initiation | 1.75 | .92 | 1.00 – 7.00 |
| Marijuana 30 day use | 1.49 | 1.17 | 1.00 – 7.00 |
Note. FES = family economic status; BIS = Behavioral inhibition scale; BAS = Behavioral activation scale composite; ATQ = adult temperament questionnaire; ATQ-IC = inhibitory control; ATQ-AT = attentional control; ATQ-AC = activation control. Sex is coded male = 0 and female = 1. Race is coded Caucasian = 1 and other = 0.