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Folly Beach Library
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Linguistically Informed Acoustic and Perceptual Analysis of Bilingual Children's Speech Productions: An Exploratory Study in the Jamaican Context.
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- Author(s): León, Michelle1; Washington, Karla N.1,2 ; McKenna, Victoria S.1,3,4; Crowe, Kathryn5,6; Fritz, Kristina7
- Source:
Journal of Speech, Language & Hearing Research. Jul2022, Vol. 65 Issue 7, p2490-2509. 20p.- Subject Terms:
*SPEECH perception; *RESEARCH; *STATISTICS; *CONFIDENCE intervals; *ANALYSIS of variance; *MULTILINGUALISM; *MULTIVARIATE analysis; *SPEECH evaluation; *MANN Whitney U Test; *COMPARATIVE studies; *INTER-observer reliability; *RESEARCH funding; *QUESTIONNAIRES; *SOUND recordings; *DESCRIPTIVE statistics; *INTRACLASS correlation; *CONSONANTS; *ACOUSTIC stimulation; *DATA analysis software; *DATA analysis; *INTELLIGENCE tests; *CHILDREN; PHYSIOLOGICAL aspects of speech - Source:
- Additional Information
- Subject Terms:
- 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. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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