Phonetics and Speech Sciences (말소리와 음성과학)

Korean Society of Speech Sciences (한국음성학회)
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Developmental assimilation in 2-3 year old Children

2-3세 일반아동의 발달적 동화

  • Byul-Yi Kim (Department of Communication Disorders, Korea Nazarene University) ;
  • Soo-Jin Kim (Department of Communication Disorders, Korea Nazarene University)
  • 김별이 (나사렛대학교 언어치료학과) ;
  • 김수진 (나사렛대학교 언어치료학과)
  • Received : 2025.01.14
  • Accepted : 2025.02.25
  • Published : 2025.03.31
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Abstract

This study aimed to establish criteria for analyzing assimilation changes among developmental error patterns in the speech of typically developing children. The study examined these patterns and identified standardized test words in which assimilation errors frequently occurred, thereby providing practical guidance for observing assimilation in clinical settings. The analysis was based on utterances elicited using the Urimal Test of articulation and phonology2 (UTAP2) test words from 25 late 2-year-olds and 25 early 3-year-olds. The findings revealed that both groups exhibited more reverse assimilation than sequential assimilation. Additionally, manner assimilation was more common at the onset, whereas place assimilation occurred more frequently in the coda. Words that often elicited assimilation errors tended to have high phonological mean length of utterance (PMLU) scores and frequently included fricatives and affricates. This study is notable for developing criteria for analyzing assimilation patterns using existing assessment tools and comparing these patterns between typically developing children and children with speech sound disorders. These findings are expected to aid in diagnosing and setting treatment goals for children with speech-sound disorders who exhibit assimilation changes and ultimately, enhance clinical intervention strategies.

본 연구는 일반아동의 말소리에 나타나는 발달적 오류패턴 중 동화변동 분석기준을 마련하고 그 양상을 알아보고자 한다. 또한 표준화검사 단어 중 빈번하게 동화 오류패턴을 관찰할 수 있는 단어를 파악하여 임상현장에서 보다 쉽게 동화를 관찰할 수 있는 조건에 대한 정보를 제공하고자 한다. 이를 위해 2세 25명, 3세 25명을 대상으로 UTAP2 단어로 유도된 발화를 분석하였다. 그 결과 대부분의 동화 오류는 2세보다 3세에서 줄어들었으며 통계적으로 유의미한 차이를 보인 동화유형은 불완전순행방법동화였다. 두 집단 모두 순행동화보다는 역행동화를 더 많이 보였으며 초성에서는 조음방법동화가 많았고, 종성에서는 조음음위치동화가 더 많이 나타났다. 많은 아동이 동화를 보인 단어의 특성은 음운복잡도가 높고, 마찰음과 파찰음이 들어간 경우가 많았다. 본 연구는 기존 평가도구를 활용한 동화 분석기준을 마련하였으며, 추후 일반아동과 말소리장애아동과의 비교를 위한 시도를 했다는 것에 의의가 있다. 추후 임상현장에서 동화변동을 보이는 말소리장애 아동의 진단과 치료 목표 설정에 활용할 수 있을 것을 기대한다.

Keywords

References

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