PURPOSE: analyze the performance of reading and writing in students with cross-laterality. METHOD: the sample consisted of 166 students in the third year of primary school, aged eight and nine. To evaluate the laterality was used scale EDM motor development, and for the analysis of reading and writing used the Manual School Performance - MDE. The comparative analysis of the performance of reading and writing as a function of laterality (Crusade), the sample was divided into 2 groups. For analysis and interpretation of data were used programs Excel and SPSS for Windows 17.0 and for comparative analysis between the two groups, the "t" test for independent samples when data showed symmetrical, and the Mann-Whitney test for asymmetric data and for data distribution, the Shapiro-Wilk test. The significance level used in this study was p <0.05. RESULTS: it was found that of all the variables on the performance of reading and writing, were higher for the group of children with complete lateral dominance than for the group of children with laterality crusade. In writing, significant differences between the two groups, being awarded best performance for children with full-handedness right-handed. CONCLUSION: evidence that children have crossed laterality underperform in reading and writing compared to children with complete lateral dominance. These data justify the relevance of psychomotor development in infancy as an essential factor in the learning process at school.
Reading; Handwriting; Functional Laterality; Students
