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Homogeneity of the 18 QuickSIN™ Lists

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The purpose of this study was to determine the list equivalency of the 18 QuickSIN™ (Quick Speech in Noise test) lists. Individuals with normal hearing (n = 24) and with sensorineural hearing loss (n = 72) were studied. Mean recognition performances on the 18 lists by the listeners with normal hearing were 2.8 to 4.3 dB SNR (signal-to-noise ratio), whereas the range was 10.0 to 14.3 dB SNR for the listeners with hearing loss. The psychometric functions for each list showed high performance variability across lists for listeners with hearing loss but not for listeners with normal hearing. For listeners with hearing loss, Lists 4, 5, 13, and 16 fell outside of the critical difference. The data from this study suggest nine lists that provide homogenous results for listeners with and without hearing loss. Finally, there was an 8.7 dB difference in performances between the two groups indicating a more favorable signal-to-noise ratio required by the listeners with hearing loss to obtain equal performance.

Spanish
El propósito de este estudio fue determinar la equivalencia de las 18 listas QuickSIN™ (Prueba de Lenguaje Rápido en Ruido). Se estudiaron individuos con audición normal (n = 24) y con hipoacusia sensorineural (n = 72). Los desempeños de reconocimiento medio realizados por los sujetos con audición normal en las 18 listas fueron de 2.8 a 4.3 SNR (Tasa de señal/ruido), mientras que el rango de SNR fue de 10.0 a 14.3 dB para los sujetos con hipoacusia. Las funciones psicométricas para cada lista mostraron una gran variabilidad en el desempeño entre las listas para los sujetos con hipoacusia, pero no para aquellos con audición normal. Para los sujetos con hipoacusia, las listas 4, 5, 13 y 16 cayeron fuera de la diferencia crítica. Los datos de este estudio sugieren que hay nueve listas con resultados homogéneos para sujetos con y sin hipoacusia. Finalmente, existió una diferencia de 8.7 dB en los desempeños entre los dos grupos, indicando una tasa más favorable de señal/ruido requerido por los sujetos con hipoacusia para obtener desempeños iguales.
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Keywords: AUDITORY PERCEPTION; HEARING LOSS; QUICKSIN™; SPEECH PERCEPTION; WORD RECOGNITION IN MULTITALKER BABBLE

Document Type: Research Article

Publication date: March 1, 2006

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