Table 1.
Descriptive statistics for main study variables
| Variable | Min. | Max | M | SD |
|---|---|---|---|---|
| Positive Risk Taking | 0 | 1 | .6 | .25 |
| Negative Risk Taking | 0 | .93 | .38 | .25 |
| Sensation Seeking | 0 | 1 | .59 | .3 |
| Impulse Control | 0 | 1 | .7 | .27 |
| BART Risk Taking | .29 | .93 | .69 | .11 |
| Stoplight Risk Taking | .05 | .94 | .44 | .19 |
| IGT Reward Sensitivitya | −8.24 | 4 | .07 | 2.25 |
| IGT Punishment Sensitivitya | −12.73 | 3.08 | −3.39 | 3.74 |
| Grit | 1.5 | 4.5 | 3.44 | .53 |
| School Engagement | 1.22 | 5.67 | 3.95 | .76 |
| Internalizing Symptoms | 0 | 31 | 7.41 | 7.38 |
| Age | 16 | 20 | 18.1 | .81 |
| Parent Education | 0 | 15 | 12.52 | 2.71 |
| Intellectual Functioning | 20 | 68 | 51.66 | 8.08 |
Note. Internalizing symptoms represents an average of mothers’ and fathers’ reports.
a
Linear slope estimates of the proportion of plays from advantageous (reward sensitivity) and disadvantageous (punishment sensitivity) decks in the second through sixth blocks of the Iowa Gambling Task (IGT).