Table 1.
Results of the Chi Square Test for Independence which tested whether the data from both Experiment 1 (Manual Search) and Experiment 2 (Oculomotor Search and Delayed Oculomotor Search) met the criteria for independence of path outlined by the OGRE model (Epelboim & Suppes, 2001), i.e., the sequence of visits was a first-order Markov process, such that the location searched on visit n was statistically dependent on the location searched on visit n − 1 and not on the location searched in the earlier visit, n − 2.
| 1st order |
2nd order |
|||
|---|---|---|---|---|
| Category | Chi2 | p< | Chi2 | p< |
| Manual search | ||||
| S | 5.99 | .0001 | 0.07 | ns |
| SS | 7.62 | .0001 | 0.22 | .025 |
| SD | 11.09 | .0001 | 0.15 | .001 |
| SSD | 6.61 | .0001 | 4.75 | .01 |
| SDD | 7.60 | .0001 | 0.33 | .0001 |
| Oculomotor Search (no delay) | ||||
| S | 7.29 | .0001 | 1.14 | .0001 |
| SS | 11.71 | .0001 | 0.29 | .001 |
| SD | 15.71 | .0001 | 0.86 | .0001 |
| SSD | 15.95 | .0001 | 0.48 | .0001 |
| SDD | 11.53 | .0001 | 0.45 | .0001 |
| Delayed Oculomotor Search | ||||
| S | 5.17 | .0001 | 0.25 | .01 |
| SS | 8.65 | .0001 | 0.37 | ns |
| SD | 7.97 | .0001 | 0.09 | .01 |
| SSD | 6.46 | .0001 | 1.52 | ns |
| SDD | 7.69 | .0001 | 0.29 | .05 |