Table 3.
Multiple regression of the standardized, logit-transformed proportion of high probability choices on 96 independent trials in the instructed gambling block by k younger or older adults, with one RA-related predictor (Hi Prob), one EV-related predictor (ΔEV), and a dummy-coded age variable.
| Term | β | SE | t | p |
|---|---|---|---|---|
| Hi Prob | 0.17 | 0.05 | 3.69 | <0.01 |
| ΔEV | 0.70 | 0.05 | 14.46 | <0.01 |
| Age | 0.15 | 0.05 | 3.31 | <0.01 |
| ΔEV × age | −0.30 | 0.05 | −6.47 | <0.01 |
| Hi Prob × age | −0.04 | 0.05 | −0.80 | 0.43 |
Trial-level parameters were z-scored. kj,m,t ≤40/46 for younger/older adults. N = 2 × 96 = 192 (age groups × trials per group).