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The purpose of this study was to compare the phonological processing abilities (PPA) between children with speech sound disorder (SSD) and typically developing children (TD) in early elementary school years, and to examine phonological processing abilities according to subtypes of SSD. Methods: The participants were 32 children with SSD and 21 typically developing children in the first to the third grades. Children with SSD were divided into children with articulation disorders, phonological delays, and phonological disorders. The tasks for PPA consisted of (1) phonological awareness (PA) tests at syllable and phoneme levels, (2) phonological memory (PM) tests including non-word repetition (NWR), digit forward recall (DF), and digit backward recall (DB), and (3) rapid automatized naming (RAN) tests conducted by numbers and letters. Results: Children with SSD and TD showed significant differences in NWR. As a result of examining the PPA among subgroups of SSD, children with phonological disorders showed significantly lower performance in the NWR and the RAN than children with articulation disorders. Also, children with phonological delays and phonological disorders showed significantly lower performance in the DB task than children with articulation disorders. Conclusion: Significant differences were found between children with SSD and TD in NWR task among the PPA tasks, suggesting the clinical usefulness of the NWR task. This study suggests that children with SSD form a heterogeneous group who differ in terms of involvement of other aspects of speech processing model.
The purpose of this study was to compare the phonological processing abilities (PPA) between children with speech sound disorder (SSD) and typically developing children (TD) in early elementary school years, and to examine phonological processing abilities according to subtypes of SSD. Methods: The participants were 32 children with SSD and 21 typically developing children in the first to the third grades. Children with SSD were divided into children with articulation disorders, phonological delays, and phonological disorders. The tasks for PPA consisted of (1) phonological awareness (PA) tests at syllable and phoneme levels, (2) phonological memory (PM) tests including non-word repetition (NWR), digit forward recall (DF), and digit backward recall (DB), and (3) rapid automatized naming (RAN) tests conducted by numbers and letters. Results: Children with SSD and TD showed significant differences in NWR. As a result of examining the PPA among subgroups of SSD, children with phonological disorders showed significantly lower performance in the NWR and the RAN than children with articulation disorders. Also, children with phonological delays and phonological disorders showed significantly lower performance in the DB task than children with articulation disorders. Conclusion: Significant differences were found between children with SSD and TD in NWR task among the PPA tasks, suggesting the clinical usefulness of the NWR task. This study suggests that children with SSD form a heterogeneous group who differ in terms of involvement of other aspects of speech processing model.
Objectives: The purpose of this study is to examine whether phonological processing skill-based phonics intervention is effective in improving phonological awareness, decoding, and spelling in adults with dyslexia. In addition, this study aimed to ascertain in detail the characteristics of decoding, spelling, and phonological awareness in adults with dyslexia. Methods: The participant of this study was a 46-year-old adult female with dyslexia, and a single subject experiment research method was used. An intervention program for phonological awareness, decoding, and spelling was conducted 28 times in total (3 baseline sessions, 22 intervention sessions, and 3 maintenance sessions) and her performance was assessed with assessments modified by the researcher. Results: It was confirmed that phonological processing skill-based phonics intervention is effective in improving decoding, spelling, and phonological awareness abilities. A detailed analysis of spelling errors in the adult with dyslexia revealed that errors for single vowels, basic consonants, and basic final consonant were the most common. A detailed analysis of errors by phonological awareness unit and task showed struggles with - in order of difficulty - deletion, blending, substitution, and discrimination. Among the discrimination tasks, final consonant discrimination was the most difficult. Conclusion: The results of this study are meaningful as basic data for improving the perception of adults with dyslexia and intervention program for them.
The phonemic awareness tasks (phonemic synthesis, phonemic elision, phonemic segmentation) by auditory presentation and visual presentation were conducted to 40 children who are 5 and 6 years old. The scores and error types in the sub-tasks by two presentations were compared to each other. Also, the correlation between the performances of phonemic awareness sub-tasks in two presentation conditions were examined. As a result, 6-year-old group showed significantly higher phonemic awareness scores than 5-year-old group. Both group showed significantly higher scores in visual presentation than auditory presentation. While the performance under the visual presentation was significantly lower especially in the segmentation than the other two tasks, there was no significant difference among sub-tasks under the auditory presentation. 5-year-old group showed significantly more 'no response' errors than 6-year-old group and 6-year-old group showed significantly more 'phoneme substitution' and 'phoneme omission' errors than 5-year-old group. Significantly more 'phoneme omission' errors were observed in the segmentation than the elision task, and significantly more 'phoneme addition' errors were observed in elision than the synthesis task. Lastly, there are positive correlations in auditory and visual synthesis tasks, auditory and visual elision tasks, and auditory and visual segmentation tasks. Summarizing the results, children tend to depend on orthographic knowledge when acquiring the initial phonemic awareness. Therefore, the result of this research would support the position that the orthographic knowledge affects the improvement of phonemic awareness.
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