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- W4285494964 endingPage "2509" @default.
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- W4285494964 abstract "Purpose: The aim of this study was to characterize speech acoustics in bilingual preschoolers who speak Jamaican Creole (JC) and English. We compared a standard approach with a culturally responsive approach for characterizing speech sound productions. Preschoolers' speech productions were compared to adult models from the same linguistic community as a means for providing confirmatory evidence of typical speech patterns specific to JC–English speakers. Method: Two protocols were applied to the data collected using the Diagnostic Evaluation of Articulation and Phonology (DEAP) Articulation subtest: (a) the standardized DEAP protocol and (b) a culturally and linguistically adapted protocol reflective of the Jamaican post-Creole (English to Creole) continuum. The protocols were used to analyze responses from JC-English–speaking preschoolers ( n = 119) and adults ( n = 15). Responses were analyzed using acoustic (voice onset time, whole-word duration, and vowel duration) and perceptual (percentage of consonant correct–revised and response frequencies) measures. Results: The culturally responsive protocol captured variation in the frequency and acoustic differences produced in the post-Creole continuum, with higher amounts of “other” responses compared to “standard” target responses for both children and adults. Adults' whole-word durations were shorter and showed more consistent prevoicing during initial plosives compared to the children. Conclusions: Applying culturally responsive methods, including knowledge of the variation produced in the post-Creole continuum and with adult models from the same linguistic community, improved the ecological validity of speech characterizations for JC–English preschoolers. Acoustic properties of speech should be investigated further as a means of describing bilingual development and distinguishing between difference and disorder. Supplemental Material: https://doi.org/10.23641/asha.20249382" @default.
- W4285494964 created "2022-07-15" @default.
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- W4285494964 date "2022-07-18" @default.
- W4285494964 modified "2023-09-30" @default.
- W4285494964 title "Linguistically Informed Acoustic and Perceptual Analysis of Bilingual Children's Speech Productions: An Exploratory Study in the Jamaican Context" @default.
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- W4285494964 doi "https://doi.org/10.1044/2022_jslhr-21-00386" @default.
- W4285494964 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35858256" @default.
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