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Phoneme sensitivity predicts vocabulary size in 2 1/2- to 3-year-olds
Stockholm University, Faculty of Humanities, Department of Linguistics, Phonetics. (Jollergruppen)ORCID iD: 0000-0002-8036-516X
MARCS Auditory Laboratories, University of Western Sydney, Australia.
2006 (English)In: 11th Australasian International Conference on Speech Science and Technology: Auckland, New Zealand, 2006, 28- p.Conference paper (Refereed)
Abstract [en]

Sixty Australian English speaking toddlers were tested in a longitudinal study at 30, 33, and 36 months on vocabulary size, phoneme sensitivity, language-specific speech perception, and articulation accuracy. Vocabulary size was measured with the Australian English adaptation of the MacArthur Communicative Development Inventory and the Peabody Picture Vocabulary Test III. Phoneme Sensitivity (PS) comprised scores from mispronunciation detection, rhyme detection, and nonword repetition tasks. Language Specific Speech Perception (LSSP) was calculated by subtracting the score for nonnative speech perception from the native score, indicating the degree of specialisation in the native language. Articulation accuracy (AA) was measured with an adaptation of the Queensland Articulation Test. Results showed (i) linear improvements in all new measures, appropriately depicting the developmental trend; (ii) significant correlations between AA and vocabulary size; (iii) predictability of vocabulary size by PS and vice versa at 30, 33, and 36 months. The results provide further evidence for the important role phoneme-sensitive speech perception plays in the process of lexical acquisition.

Place, publisher, year, edition, pages
2006. 28- p.
Keyword [en]
phoneme sensitivity, vocabulary development, language specific speech perception
National Category
General Language Studies and Linguistics
URN: urn:nbn:se:su:diva-11883OAI: diva2:178402
11th Australasian International Conference on Speech Science and Technology
Available from: 2008-01-14 Created: 2008-01-14 Last updated: 2013-08-28Bibliographically approved

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