ERIC Number: EJ737387
Record Type: Journal
Publication Date: 2006-Jul
Reference Count: 40
Assessing Vocal Development in Infants and Toddlers
Nathani, Suneeti; Ertmer, David J.; Stark, Rachel E.
Clinical Linguistics & Phonetics, v20 n5 p351-369 Jul 2006
The purpose of this study was to examine changes in prelinguistic vocal production during the first 20 months of life. Vocalizations were classified into 23 mutually exclusive and exhaustive types, and grouped into five ascending levels using the Stark Assessment of Early Vocal Development-Revised (SAEVD-R). Data from 30 typically developing infants, aged 0-20 months, show that older infants attained higher developmental levels on the SAEVD-R than younger infants. Infants 0-2, 3-5, and 6-8 months of age primarily produced vocalizations from Levels 1 (Reflexive), 2 (Control of Phonation), and 3 (Expansion). Infants 9-20 months of age also produced vocalizations from Level 4 (Basic Canonical Syllables). Only infants from 16-20 months of age produced Level 5 (Advanced Forms) vocalizations in significant quantities. The outcomes indicate that the SAEVD-R is a valuable instrument for evaluating prelinguistic vocal development. (Contains 1 table and 2 figures.)
Descriptors: Infants, Language Acquisition, Toddlers, Measures (Individuals), Child Language, Developmental Stages, Evaluation Methods
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A