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Behavior Research Methods

, Volume 50, Issue 4, pp 1311–1326 | Cite as

Nonword repetition stimuli for Vietnamese-speaking children

  • Giang Pham
  • Kerry Danahy Ebert
  • Kristine Thuy Dinh
  • Quynh Dam
Article

Abstract

Nonword repetition (NWR) has been a widely used measure of language-learning ability in children with and without language disorders. Although NWR tasks have been created for a variety of languages, minimal attention has been given to Asian tonal languages. This study introduces a new set of NWR stimuli for Vietnamese. The stimuli include 20 items ranging in length from one to four syllables. The items consist of dialect-neutral phonemes in consonant–vowel (CV) and CVC sequences that follow the phonotactic constraints of the language. They were rated high on wordlikeness and have comparable position segments and biphone probabilities across stimulus lengths. We validated the stimuli with a sample of 59 typically developing Vietnamese–English bilingual children, ages 5 to 8. The stimuli exhibited the expected age and length effects commonly found in NWR tasks: Older children performed better on the task than younger children, and longer items were more difficult to repeat than shorter items. We also compared different scoring systems in order to examine the individual phoneme types (consonants, vowels, and tones) and composite scores (proportions of phonemes correct, with and without tone). The study demonstrates careful construction and validation of the stimuli, and future directions are discussed.

Keywords

Tonal languages Phonological memory Language assessment Phonotactic properties 

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Copyright information

© Psychonomic Society, Inc. 2018

Authors and Affiliations

  • Giang Pham
    • 1
  • Kerry Danahy Ebert
    • 2
  • Kristine Thuy Dinh
    • 1
  • Quynh Dam
    • 1
  1. 1.School of Speech, Language, and Hearing SciencesSan Diego State UniversitySan DiegoUSA
  2. 2.Rush UniversityChicagoUSA

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