Arithmetic Abilities in Children With Developmental Dyslexia: Performance on French ZAREKI-R Test.

A high comorbidity between reading and arithmetic disabilities has already been reported. The present study aims at identifying more precisely patterns of arithmetic performance in children with developmental dyslexia, defined with severe and specific criteria. By means of a standardized test of achievement in mathematics ( Calculation and Number Processing Assessment Battery for Children; von Aster & Dellatolas, 2006), we analyzed the arithmetic abilities of 47 French children with dyslexia attending 3rd, 4th, and 5th grade.

Neuropsychological profile on the WISC-IV of French children with dyslexia.

This study examined the pattern of results on the Wechsler Intelligence Scale for Children (WISC-IV; French version) for 60 French children with dyslexia, from 8 to 16 years of age. Although use of WISC-III failed to clearly identify typical profiles and cognitive deficits in dyslexia, WISC-IV offers an opportunity to reach these objectives with new indexes and subtests. The mean performance analysis showed a Working Memory Index (WMI) at a limit level, significantly lower compared to the three other indexes.