بررسي شاخص هاي كيفيت گفتار در كودكان فارسي زبان طبيعي 5-4 ساله در شهرستان سمنان ، بيرجند وتنكابن ، سال 1383

The study of speech quality parameters in normal Persian children of 4-5 years old in Semnan, Birjand and Tanekabon cities

Background and purpose: We can examine the language abilities of a person through five parameters of speech quality including speech fluency, speech complexity, speech exactness, speech rate and lexical accessibility. These parameters are examined by the secondary parameters including mean length of utterance (MLU), mean length of five long utterances, mean number of verb in sentence, mean number of bound clause in sentence and richness of vocabulary. We have examined four parameters except the speech exactness in normal Persian children of 4-5 years old in Semnan, Birjand and Tonekabon cities. These parameters were then compared between children. Materials and methods : 90 children were selected nurseries through testing and they were divided into three groups including 30 subjects from. After examining the childrenʹs speech, they were analyzed and secondary parameters were determined. Finally we compared the results through statistical tests. Results : Semnani childrenʹs MLU of descriptive speech exceeds tonekaboni children. Semnani childrenʹs mean length of five long utterances of free speech exceeds Birjandi children. Semnani childrenʹs mean number of verb in sentence of free speech exceeds Birjandi children, Birjandi and Toneckaboni childrenʹs mean number of bound clause in sentence of descriptive speech exceeds Semnani children. Birjandi childrenʹ richness of vocabulary of free speech exceeds Semnani and Toneckaboni children. Birjandi childrenʹs speech rate of free and descriptive speech exceeds Semnani and Toneckaboni children. Conclusion : Dialect contributes to speech quality parameters therefore we must consider them in assessment, diagnosis and treatment of language disorders in children with different dialects.