Table III.
Probability Structure of the Task
| Cue | P (cue combination) | ||||||
|---|---|---|---|---|---|---|---|
| Pattern | 1 | 2 | 3 | 4 | P (pattern) | Frequency (No. per 200 trials) | P (outcome) |
| A | 0 | 0 | 0 | 1 | 0.0095 | 19 | 0.89 |
| B | 0 | 0 | 1 | 0 | 0.045 | 9 | 0.78 |
| C | 0 | 0 | 1 | 1 | 0.130 | 26 | 0.92 |
| D | 0 | 1 | 0 | 0 | 0.045 | 9 | 0.22 |
| E | 0 | 1 | 1 | 1 | 0.060 | 12 | 0.83 |
| F | 0 | 1 | 1 | 0 | 0.030 | 6 | 0.50 |
| G | 0 | 1 | 1 | 0 | 0.095 | 19 | 0.89 |
| H | 1 | 0 | 0 | 0 | 0.095 | 19 | 0.11 |
| I | 1 | 0 | 0 | 1 | 0.030 | 6 | 0.50 |
| J | 1 | 0 | 1 | 0 | 0.060 | 12 | 0.17 |
| K | 1 | 0 | 1 | 1 | 0.045 | 9 | 0.55 |
| L | 1 | 1 | 0 | 1 | 0.130 | 26 | 0.08 |
| M | 1 | 1 | 0 | 1 | 0.045 | 9 | 0.44 |
| N | 1 | 1 | 1 | 0 | 0.095 | 19 | 0.11 |
| Total | 1.00 | 200 | |||||
On any trial, one of 14 possible combinations of four cues could appear with the probability indicated [P(pattern)]. Each combination of cues predicted one outcome with the probability P(outcome) and predicted the other outcome with a probability of [1–P(outcome)].