Table 2.
The likelihood ratios and results of a likelihood ratio test for all models in Experiment 1. The Best Model is the model that is compared against all Comparison models that differ by removing a factor. The Likelihood reports how much more likely the best model is to the comparison. The chi-square statistic results report whether the best model performed statistically better than the comparison.
| Experiment 1 Model | Best Model | Comparison | Likelihood | χ2 | DF | p |
|---|---|---|---|---|---|---|
| Risk1 | Full | Signal | >1000 | 1371.2 | 7 | <.001 |
| Species | 12 | 13.718 | 4 | 0.008 | ||
| Trial | >1000 | 260.21 | 7 | <.001 | ||
| History1 | Species | Full | 6 | 8.2668 | 6 | 0.22 |
| Signal | >1000 | 362.36 | 7 | <.001 | ||
| Prior Outcome | >1000 | 353.15 | 11 | <.001 | ||
| Truncation1 | Full | Signal | >1000 | 8436.2 | 17 | <.001 |
| Species | >1000 | 42.993 | 12 | <.001 | ||
| Outcome | >1000 | 7169.7 | 25 | <.001 | ||
| Delay Segment | >1000 | 140.39 | 17 | <.001 |