The development of an afrikaans test for sentence recognition thresholds in noise.
Objective: The development of a valid and reliable Afrikaans test of sentence recognition thresholds in noise. Design: A collection of sentences was developed, rated for naturalness and grammatical complexity, and digitally recorded using a female speaker. Sentences found to have similar psychometri...
| Publicado en: | International Journal of Audiology Vol. 50; no. 2; pp. 77 - 86 |
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| Autores principales: | , , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Feb2011
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104991638&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104991638 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Feb2011 vid: 50 iid: 2 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104991638 57535358 10.3109/14992027.2010.532511 NLM21091082 104991638 ppf: 77 ppct: 9 formats: fmt: @attributes: type: P tig: atl: The development of an afrikaans test for sentence recognition thresholds in noise. aug: au: Theunissen M Hanekom JJ Swanepoel D affil: **Department of Communication Pathology, University of Pretoria, South AfricaDepartment of Electrical, Electronic and Computer Engineering, University of Pretoria, South Africa sug: subj: Noise Speech Perception Human Language Africa Speech Discrimination Tests Analysis of Variance Friedman Test Wilcoxon Rank Sum Test Test-Retest Reliability Repeated Measures Paired T-Tests Funding Source ab: Objective: The development of a valid and reliable Afrikaans test of sentence recognition thresholds in noise. Design: A collection of sentences was developed, rated for naturalness and grammatical complexity, and digitally recorded using a female speaker. Sentences found to have similar psychometric curve slopes, with equivalent intelligibility at three different noise levels, were arranged into 22 phonemically matched lists of ten sentences each. List equivalence was evaluated in normal-hearing listeners in full and reduced bandwidth conditions. Test-retest reliability of the remaining lists was evaluated in a second group of listeners. Study sample: All listeners were native speakers of Afrikaans with normal hearing. For evaluation of list equivalence, ten listeners were used. Twenty other listeners were used to evaluate test-retest reliability. Results: A collection of eighteen phonemically matched lists was produced. Lists were found to be of equivalent difficulty in full and reduced bandwidth conditions, and to have good test-retest reliability in normal-hearing listeners. The average recognition threshold of these lists was −−2.73 dB signal-to-noise ratio (standard deviation == 0.64 dB), and within-subject variability was 1.22 dB. Conclusions: The developed test provides a valid and reliable means of measuring sentence recognition thresholds in noise in Afrikaans. Sumario Objetivo: Desarrollar una prueba váálida y confiable de umbrales de reconocimiento de frases en ruido en Afrikaans. Diseñño: Se elaboróó una coleccióón de oraciones clasificadas segun su naturalidad y complejidad gramatical y registradas digitalmente, usando una voz de locutora femenina. Se observóó que las oraciones teníían curvas psicoméétricas de gradiente similar, con inteligibilidad equivalente a tres diferentes niveles de ruido, que se organizaron en 22 listas pareadas fonééticamente, de diez oraciones cada una. La equivalencia de las listas se evaluóó en sujetos normoyentes bajo condiciones de ancho de banda completo o reducido. La confiabilidad test-retest de las restantes listas fue evaluada en un segundo grupo de sujetos. Muestra De Estudio: Todos los sujetos fueron normoyentes y hablantes nativos de Afrikaans. Para la evaluacióón de la equivalencia de listas, se tomaron diez sujetos y otros veinte para valorar la confiabilidad test-retest. Resultados: Se elaboraron diez y ocho listas fonéémicamente pareadas. Se encontróó que las listas tuvieron una dificultad equivalente en condiciones de ancho de banda completo o reducido y que fue buena su confiabilidad test-retest en sujetos normooyentes. El umbral promedio de reconocimiento de estas listas fue de -2.73 dB de relacióón seññal-ruido (desviacióón estáándar == 0.64 dB), y la variabilidad por sujeto fue de 1.22 dB. Conclusiones: La prueba desarrollada proporciona un medio váálido y confiable para medir los umbrales de reconocimiento de oraciones en ruido en Afrikaans. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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