Table 2.
Other delay discounting task measures across age and drinking groups.
| Non-heavy drinkers | Heavy drinkers | Age∗drinking interaction | ||||
|---|---|---|---|---|---|---|
| Ages 18–24 (n = 75) | Ages 26–40 (n = 20) | Ages 18–24 (n = 109) | Ages 26–40 (n = 19) | F219 | p | |
| Task performance | ||||||
| Control trial Acc | 97.0 ± 3.3 | 96.7 ± 3.5 | 96.6 ± 3.6 | 98.1 ± 2.0 | 2.22 | 0.14 |
| Control trial RT | 1364 ± 339 | 1347 ± 315 | 1401 ± 329 | 1233 ± 276 | 1.68 | 0.20 |
| WANT trial RT | 1920 ± 383 | 1743 ± 388 | 1915 ± 396 | 1711 ± 389 | 0.04 | 0.84 |
| DON’T WANT trial RT | 2064 ± 399 | 1859 ± 385 | 2086 ± 449 | 1888 ± 369 | 0.002 | 0.96 |
| Other task measures | ||||||
| Motor mismatch | 0.11 ± 0.06 | 0.10 ± 0.07 | 0.11 ± 0.06 | 0.12 ± 0.07 | 0.61 | 0.44 |
| ICR consistency (α) | 0.978 | 0.991 | 0.987 | 0.988 | 0.86† | 0.51† |
Values are reported as mean ± standard deviation. Reported F and p-values reflect the results testing for significant age by AUDIT group interactions. Exact p-values reported unless p < 0.001. Conventions as per Table 1. aerror = 210. †result of ICR by Block by Age by AUDIT Group ANOVA, Greenhouse–Geisser corrected: F(7,1477).