Table 1.
Reward schedule for the IGT.
| Deck A | Deck B | Deck C | Deck D | |
|---|---|---|---|---|
| DRAW FROM DECK | ||||
| 1 | 100 | 100 | 50 | 50 |
| 2 | 100 | 100 | 50 | 50 |
| 3 | 100, −150 | 100 | 50, −50 | 50 |
| 4 | 100 | 100 | 50 | 50 |
| 5 | 100, −300 | 100 | 50, −50 | 50 |
| 6 | 100 | 100 | 50 | 50 |
| 7 | 100, −200 | 100 | 50, −50 | 50 |
| 8 | 100 | 100 | 50 | 50 |
| 9 | 100, −250 | 100, −1250 | 50, −50 | 50 |
| 10 | 100, −350 | 100 | 50, −50 | 50, −250 |
| Cumulative payoff | −250 | −250 | 250 | 250 |
See Bechara et al. (1994) for the full table which lists payoffs for the first 40 cards drawn from each deck. In the present task the sequence was repeated for cards 41–80 and 81–100 so that a participant could potentially select the same deck on all 100 draws. Bold values indicate amount lost on each trial.