Table 1. Odds for fusion and fission illusions, Experiment 1 (central presentation).
Stimulus | Odds of illusion (multisensory) | Odds of illusion (unisensory) | Odds ratio | X 2(df) | X 2 p | Fisher p (one-sided) |
1F2B (fission) | 3.1 | .25 | 12.4 | 27.8(1) | <.000 | <.000 |
1F3B (fission) | 4.6 | .25 | 18.5 | 34.9(1) | <.000 | <.000 |
2F1B (fusion) | .02 | .02 | 1.0 | 1.0(1) | .3 | .5 |
3F1B (fusion) | .03 | .02 | 2.6 | 2.7(1) | .09 | .08 |
The odds for fusion and fission illusions for each of the four illusion-capable stimuli in Experiment One (central presentation). The final odds ratio, and the significance of the association between stimulus type (uni- vs. multi-sensory) and reports of illusions (fissions/fusions vs non-illusory) are also shown.