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KMID : 1036820200250040890
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Communication Sciences & Disorders
2020 Volume.25 No. 4 p.890 ~ p.904
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Developmental Phonological Error Patterns in a Word-Level Test for Children Aged 2-7 Years Old
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Ha Ji-Wan
Kim Soo-Jin
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Abstract
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Objectives: This paper reports a developmental study on two aspects of phonological error patterns: The incidence rate of error patterns and age-appropriate error patterns by age.
Methods: Speech samples of 620 typically developing children, aged between 2;6 and 7;11 years, randomly selected throughout Korea, were collected through the word-level test UTAP2 (Urimal Test of Articulation and Phonology 2). After performing error pattern analysis on the response data, the incidence rates of error patterns among age groups were compared; and by analyzing the error patterns used by at least 10% of the children in the same age group, age-appropriate error patterns error patterns were identified.
Results: The incidence rate of phonological substitution patterns was the highest, and in particular, stopping of fricatives and affricates and liquid deletion were the most frequent. The age-appropriate error patterns were identified as follows. Velar fronting and tensing up to late 2 or early 3 years old, word-final code deletion and gliding of liquid up to late 3 years old, deletion of word-medial coda deletion, liquid deletion, stopping of fricatives and affricates, and assimilation of word-medial coda up to late 4 years old, nasalization of liquid up to early 5 years old, and (inter) dentalization up to 7 years old, all of which were age-appropriate.
Conclusion: This study is meaningful in that it established a classification system of developmental error patterns, and identified age-appropriate error patterns from a large sample of children by age.
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KEYWORD
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Phonological error patterns, Developmental error patterns, UTAP2, Word-level test
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