Table 3. Observer agreement.
| Interobserver agreement |
Intra-observer agreement |
||||||
| 1 vs 2 | 1 vs 3 | 2 vs 3 | 1 | 2 | 3 | ||
| Upper level of the brain | |||||||
| Q1 | 66 (164/247) | 65 (162/248) | 55 (138/248) | Q1 | 83 (25/30) | 77 (23/30) | 70 (21/30) |
| Q2 | 62 (152/247) | 64 (156/245) | 53 (131/246) | Q2 | 53 (16/30) | 67 (20/30) | 63 (19/30) |
| Q3 | 61 (151/248) | 66 (163/248) | 57 (142/248) | Q3 | 77 (23/30) | 83 (25/30) | 63 (19/30) |
| Q4 | 67 (165/248) | 68 (168/248) | 61 (152/248) | Q4 | 83 (25/30) | 77 (23/30) | 60 (18/30) |
| Q5 | 63 (156/248) | 60 (149/248) | 49 (121/248) | Q5 | 73 (22/30) | 73 (22/30) | 87 (26/30) |
| Q6 | 48 (118/248) | 70 (173/248) | 44 (109/248) | Q6 | 77 (23/30) | 63 (19/30) | 60 (18/30) |
| Lower level of the brain | |||||||
| Q1 | 58 (143/248) | 59 (147/248) | 60 (149/248) | Q1 | 67 (20/30) | 67 (20/30) | 80 (24/30) |
| Q3 | 67 (165/248) | 57 (141/248) | 57 (140/248) | Q3 | 77 (23/30) | 77 (23/30) | 60 (18/30) |
| Q4 | 52 (129/248) | 64 (158/248) | 51 (127/248) | Q4 | 70 (21/30) | 63 (19/30) | 67 (20/30) |
| Q5 | 65 (160/248) | 48 (119/247) | 41 (102/247) | Q5 | 50 (15/30) | 63 (19/30) | 77 (23/30) |
| Q6 | 52 (130/248) | 61 (152/248) | 44 (108/248) | Q6 | 80 (24/30) | 63 (18/30) | 70 (21/30) |
The values of percentage agreement (PA) (%) and numerator/denominator within brackets for each observer (1, 2 and 3) and question (see Table 2) in the upper and lower levels of the brain.