Table 4.
MANCOVA results for cognitive measures for Reward-delay impulsivity group: Presented are raw means (standard deviations) and F-statistic.
| Variable | Low Reward-delay impulsivity group (n = 53) | High Reward-delay impulsivity group (n = 30) | F(1,80) | Partial Eta Squared |
|---|---|---|---|---|
| GNGT – number of commission errors | 3.47 (3.5) | 5.07 (4.2) | 3.57 | 0.04 |
| GNGT – Mean RT | 359.10 (53.8) | 378.91 (70.5) | 2.44 | 0.03 |
| SST – number of commission errors | 13.68 (9.5) | 15.07 (10.6) | 0.33 | 0.00 |
| SSRT | 260.90 (174.1) | 279.30 (165.9) | 0.34 | 0.00 |
| DDT | 0.53 (0.1) | 0.60 (0.1) | 4.42∗ | 0.05 |
For the DDT, the proportion of small-immediate/large-delayed reward choices is shown. GNGT, Go/No-Go Task; RT, reaction time; SST, Stop-Signal Task; SSRT, Stop-Signal reaction time; DDT, Delay Discounting Task. ∗p < 0.05.