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Spelling performances in the primary and lower secondary grades: mean (standard deviation) percentage of incorrect words, pen movement speed (cm/s) and handwriting duration (ms/car).
| Primary grades | Secondary grades | |
|---|---|---|
| Incorrect words (%) | 33.01 (13.87) | 17.78 (7.96) |
| Pen movement speed (cm/s) | 2.04 (0.53) | 2.71 (0.75) |
| Handwriting duration (ms/car) | 1748 (677) | 1665 (168) |
