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Phonological development in lexically precocious 2-year-olds

Published online by Cambridge University Press:  14 July 2006

BRUCE L. SMITH
Affiliation:
University of Utah
KARLA K. MCGREGOR
Affiliation:
University of Iowa
DARCIE DEMILLE
Affiliation:
University of Utah

Abstract

To examine interactions between young children's vocabulary size and their phonological abilities, spontaneous language samples were collected from 24-month-olds with precocious lexicons, their age mates (24-month-olds with average-sized lexicons), and their vocabulary mates (30-month-olds with average-sized lexicons). Phonological ability was measured in a variety of ways, such as the number of different consonants that were targeted, the number of different consonants produced correctly, the percentage of consonants produced correctly, and the occurrence of phonological processes. The lexically precocious 24-month-olds were similar to their vocabulary mates on most measures of phonological ability, and both of these groups were generally superior to the 24-month-olds with smaller lexicons. These findings supported a hypothesized relationship between lexicon size and phonological performance, and demonstrated that 2-year-olds' phonological development is more closely related to size of the lexicon than chronological age.

Type
Articles
Copyright
2006 Cambridge University Press

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