Nasalance Variability in 3- to 5-Year-Old Children during Production of Speech Stimulus in Three Vowel Contexts.

Objective: The purpose of this study was to determine whether age and vowel contexts influence test-retest nasalance score variability in typically developing Korean children.

Participants: Forty-five 3- to 5-year-old children with normal speech and resonance participated in the study.

Methods: All subjects were asked to repeat three 4-syllable speech stimuli in high, low, or mixed vowel contexts twice after the examiner.