Explaining age and sex differences in children's handwriting: A neurobiological approach
The present study aimed to assess the effect of age and sex on children's writing performance, as well as to investigate possible age and sex differences between proficient, intermediate and poor writers. Two hundred and ten children aged 7 to 12 years were examined during spontaneous writing, copying and writing to dictation, using the writing scale of the Luria - Nebraska neuropsychological battery. Results showed a significant effect of age in writing performance. The trend towards writing proficiency in childhood was found to be sex related, while boys were overrepresented among the poor writers. The findings are interpreted on the basis of the neurobiological theories of brain development as well as on the different rates of cerebral maturation between the sexes.