Table 1.
Structure of the Malawi and UK samples for each task.
| Task | Malawi | UK | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | Gender | Age (months) | n | Gender | Age (months) | |||||
| M:F | Range | M (SD) | Median | M:F | Range | M (SD) | Median | |||
| Manual processing speed | 261 | 134:127 | 73–161 | 97.54 (15.30) | 96.00 | 62 | 36:26 | 50–69 | 60.94 (4.82) | 61.00 |
| Manual coordination | 218 | 107:111 | 74–161 | 100.82 (14.75) | 99.00 | 64 | 36:28 | 50–69 | 60.94 (4.75) | 61.00 |
| Short-term memory | 215 | 105:110 | 74–161 | 99.30 (14.27) | 98.00 | 69 | 38:31 | 50–69 | 60.72 (4.96) | 61.00 |
| Visual attention | 233 | 117:116 | 73–161 | 98.70 (15.50) | 98.00 | 62 | 36:26 | 50–69 | 60.51 (5.01) | 61.00 |
| Working memory | 221 | 109:112 | 74–161 | 99.29 (14.50) | 98.00 | 67 | 36:31 | 50–69 | 60.96 (4.88) | 61.00 |
| Spatial intelligence | 223 | 105:118 | 74–161 | 99.35 (14.75) | 98.00 | 66 | 36:30 | 50–69 | 60.74 (5.07) | 61.00 |
| Mathematics | 266 | 132:134 | 73–161 | 96.42 (15.06) | 94.00 | 59 | 36:23 | 50–69 | 60.37 (5.09) | 60.00 |