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Commun Sci Disord. 2021;26(1): 181-191.
Published online March 31, 2021.
doi: https://doi.org/10.12963/csd.20780
Developmental Phonological Error Patterns in Sentence-level Tests for Children aged 3-6 Years Old
Soo-Jin Kima , Young-Bin Choia , and Ji-Wan Hab
aDepartment of Communication Disorders, Korea Nazarene University, Cheonan, Korea
bDepartment of Speech Pathology, Daegu University, Gyeongsan, Korea
Corresponding Author: Young-Bin Choi ,Tel: +82-41-570-7978, Fax: +82-41-570-7846, Email: chldudqls8@naver.com
Received December 15, 2020  Revised: February 1, 2021   Accepted February 1, 2021
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Previous studies of phonological error patterns have focused on either word or spontaneous speech levels, and have had a limited number of samples. Based on a sentence-level phonological error patterns test performed on a large sample of children, this paper compares the incidence rates of error patterns by age group and identifies age-appropriate error patterns.
Speech samples of 437 children, aged between 3;0 and 6;11 years old, selected throughout Korea, were collected through the sentence-level test of the UTAP2 (Urimal Test of Articulation & Phonology 2nd ed.). After dividing the children into 8 age groups, the incidence rates of error patterns among age groups were presented. Then, by analyzing the error patterns shown in at least 10% of the children in the same age group, age-appropriate error patterns were identified.
The incidence rates of phonological error patterns for fricatives, liquid, and word-medial coda were the highest. Velar fronting and tensing appeared up to age 3;5, word-final coda deletion appeared up to age 3;11, liquid deletion and stopping of fricatives appeared up to 5;5 years old, and the othersgliding, affricative stopping, deletion & assimilation of word-medial coda appeared up to age 4;11, all of which were age-appropriate.
The result of this study was compared with those of previous studies under different contexts (word-level and spontaneous conversational speech level). It is meaningful in that the study established a classification system of Korean developmental error patterns for speech sound disorders, and identified age-appropriate error patterns.
Keywords: Developmental phonological error patterns | Sentence-level | UTAP2 | Speech sound disorders (SSD)
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