Table 3.
Group comparison of total brain volume between children with typical reading skills (n = 21) and with dyslexia (=13).
| Methods | Mean (standard deviation) |
Cohen d | Required sample size per group |
|
|---|---|---|---|---|
| Typical [ml] | Dyslexic [ml] | (Power:0.8 and significance: 0.05) | ||
| Gray matter volumes | ||||
| childmetrix | 846.0 (60.5) | 802.4 (62.1) | 0.76 | 23 |
| icobrain | 709.6 (56.4) | 672.8 (54.1) | 0.70 | 26 |
| Freesurfer | 674.7 (85.6) | 640.7 (51.7) | 0.48 | 55 |
| White matter volumes | ||||
| childmetrix | 402.5 (36.4) | 379.9 (32.2) | 0.68 | 28 |
| icobrain | 376.9 (35.7) | 356.4 (29.9) | 0.65 | 30 |
| Freesurfer | 400.5 (52.4) | 373.8 (43.2) | 0.58 | 38 |