Spelling Errors Made By Persian Children With Developmental Dyslexia

Background: According to recent estimates, approximately 4% - 12% of Iranians experience difficulty in learning to read and spell, possibly as a result of developmental dyslexia. Objectives: The study was intended to investigate spelling error patterns among Persian children with developmental dyslexia and compare those patterns with the errors exhibited by control groups. Patients and Methods: Some 90 students participated in this study. There were 30 fifth grade students who had been diagnosed as dyslexic by professionals, 30 normal fifth grade readers, and 30 younger normal readers. There were 15 boys and 15 girls in each of the groups. Qualitative and quantitative methods for the analysis of errors were used. Results: This study found similar spelling error profiles among the dyslexic students and the reading-level-matched group, and these profiles were different from those of the age-matched group. However, the performances of the dyslexic group and the reading-levelmatched group were different and inconsistent in some cases. Conclusions: However, performances of dyslexic group and reading level matched group were different and inconsistent in some cases.