November 24, 2023

Considerations of dialect on the identification of speech sound disorder in Vietnamese-speaking children

The following manuscript has been accepted for publication in a special issue regarding terminology for children with speech sound disorder that was initiated by Prof Yvonne Wren as chair of the Child Speech Committee of the International Association of Logopedics and Phoniatrics. 

Phạm, B. & McLeod, S. (2023, accepted November). Considerations of dialect on the identification of speech sound disorder in Vietnamese-speaking children. International Journal of Language and Communication Disorders

Here is the abstract: 

Background. The dialect spoken by children influences diagnostic decision-making regarding identification and severity of speech sound disorder. 

Aims. The primary objective was to review papers that examined the influence of dialect on the identification of speech sound disorder in Vietnamese-speaking children. 

Methods: Five studies of monolingual and multilingual Vietnamese-speaking children living in Vietnam and Australia were reviewed to examine the influence of dialect on assessment and analysis children’s speech. The main Vietnamese dialects (Standard, Northern, Central, Southern) differ in the production of consonants, vowels, and tones. 

Main Contribution. Most speech assessments define correct production using the standard dialect of a language. Insights from recent studies of Vietnamese provide recommendations for also considering dialect in diagnostic decision-making. Firstly, we recommend adding column(s) to the assessment score sheet that includes the dialectal variants spoken by adults in the child’s family or community. Secondly, calculate accuracy of production twice, based on the standard form and dialectal form. Thirdly, report percentage of consonants correct – standard (PCC-S) and percentage of consonants correct – dialect (PCC-D). 

Conclusions. Diagnostic decision-making is influenced by dialectal variation in children’s speech, so speech and language therapists (SLTs) need to compare standard and dialectal productions when undertaking assessments, analysis, and diagnostic decision-making.