Comparison of regression models describing the relationship between CORT titre and PHA response in zebra finches
| Model . | Residual SS . | d.f. . | Model versus . | F . | P value . |
|---|---|---|---|---|---|
| Linear | 2.417 | 70 | – | – | – |
| Quadratic | 2.290 | 69 | Linear | 0.004 | 0.949 |
| Cubic | 2.216 | 68 | Linear | 0.003 | 0.997 |
| Cubic | 2.216 | 68 | Quadratic | 0.002 | 0.961 |
| Model . | Residual SS . | d.f. . | Model versus . | F . | P value . |
|---|---|---|---|---|---|
| Linear | 2.417 | 70 | – | – | – |
| Quadratic | 2.290 | 69 | Linear | 0.004 | 0.949 |
| Cubic | 2.216 | 68 | Linear | 0.003 | 0.997 |
| Cubic | 2.216 | 68 | Quadratic | 0.002 | 0.961 |
CORT, corticosterone; SS, sum of squares