| Summary: | Purpose: The main purpose of the certain research is to make a comparison of the speech rate, between children with Developmental Language Impairment (DLI) and children with Typical Speech Development (TSD) in narrative speech, in syllables per second and in words per second. One of the three individual goals that were set is about making a comparison of speech rate by gender, within each main group. The second goal is about making a comparison of the speech rate based on the children’s age of each main group (older children, younger children). The third goal it has occurred during the making of the particular study and is about comparing the syllables that produce children with DLI and children with TSD. Methodology: The participants that were used in this survey were obtained through a database of a pre-existing study, conducted in 2016 by Theodorou and associates. Altogether, attended thirty-eight Cypriot children, ranging from about 5; 8 up to 7, 8 years old. Of the 38 children, 16 were children with DML and 22 were children with TGA. Speech samples were analyzed to find the speech rate in syllables per second, as well as in words per second based on specific criteria. Once the expressions that met the criteria were selected, an audio analysis was performed using the "Wavesurfer" software, and then the data were moved in an Excel database to perform the statistical t-test analysis. Results: The speech rate differs significantly between children with DLI and children with TSD, where children with DLI are having a slower speech rate. Age affects speech rate only in children with DLI, where younger children have a significantly reduced rate than older children. Sex does not affect speech rate either in children with TSD or in children with DLI. In addition, it has been shown that the number of syllables produced differs between children with DLI and children with typical development, gender does not affect at all the number of syllables that are produced, and age affects the number of syllables produced by both ...
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