Table 1.
Summary of the 4-way Analysis of variance analyzing the numbers of BrdU-immmunoreactive cells in the lateral ventricles of canaries as a function of their sex and endocrine treatment (2 independent factors) and position in the brain (2 repeated, matched factors).
| Effect | Sum of squares | df | F | P |
|---|---|---|---|---|
| Origin | 5919.777 | 1 | 1685.454 | 0.0000 |
| Sex | 1.004 | 1 | 0.286 | 0.5974 |
| Treatment (Trt) | 30.307 | 1 | 8.629 | 0.0068 |
| Sex * Trt | 2.660 | 1 | 0.757 | 0.3921 |
| Error | 91.319 | 26 | ||
| Dorso-Ventral Level (DV) | 421.321 | 1 | 201.458 | <0.0001 |
| DV * Sex | 0.519 | 1 | 0.248 | 0.6226 |
| DV * Trt | 15.418 | 1 | 7.372 | 0.0116 |
| DV * Sex * Trt | 2.684 | 1 | 1.283 | 0.2677 |
| Error | 54.375 | 26 | ||
| Rostro-caudal Level (RC) | 1366.959 | 10 | 261.280 | <0.0001 |
| RC * Sex | 4.129 | 10 | 0.789 | 0.6392 |
| RC * Trt | 3.487 | 10 | 0.666 | 0.7552 |
| RC * Sex * Trt | 4.072 | 10 | 0.778 | 0.6498 |
| Error | 136.026 | 260 | ||
| DV * RC | 327.304 | 10 | 71.223 | <0.0001 |
| DV * RC * Sex | 9.110 | 10 | 1.982 | 0.0355 |
| DV * RC * Trt | 9.095 | 10 | 1.979 | 0.0359 |
| DV * RC * Sex * Trt | 3.871 | 10 | 0.842 | 0.5882 |
| Error | 119.483 | 260 |
For each factor and interaction, the table presents the sums of squares, degrees of freedom (df), and the corresponding F and p values. Significant effects are highlighted in bold.