Interobserver comparison
| Brain Region | Kappa | Agreement Rating* |
|---|---|---|
| Frontal | 0.268 | Fair |
| Temporal | 0.144 | Slight |
| Parietal | 0.339 | Fair |
| Peritrigonal | −0.047 | Poor |
| FUF | 0.313 | Fair |
| TUF | 0.343 | Fair |
| PUF | 0.300 | Fair |
Note:—FUF indicates frontal U-fibers; PUF, parietal U-fibers; TUF, temporal U-fibers.
* <0 indicates poor; 0–0.20, slight; 0.21–0.40, fair; 0.41–0.60, moderate; 0.61–0.80, substantial; 0.81–1.0, almost perfect. Adapted from Landis and Koch.17