Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use

Objective: The aim of this study is to develop and evaluate a set of psychometrically equivalent disyllabic wordlist (SC-10) in Singapore Mandarin for clinical use. Study design: A preliminary set of 1000 words were obtained from a dictionary of frequently used words by Singapore students. Ten nativ...

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Autores principales:	Gary Jek Chong Lee, Steven Lock Hey Lee
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2021
Materias:	Speech audiometry Word recognition score Disyllabic word list Mandarin Chinese Singapore Otorhinolaryngology RF1-547 Surgery RD1-811
Acceso en línea:	https://doaj.org/article/d288b39163084063ab0f9489a754d1b8
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spelling	oai:doaj.org-article:d288b39163084063ab0f9489a754d1b82021-12-02T18:49:15ZDevelopment of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use2095-881110.1016/j.wjorl.2020.02.011https://doaj.org/article/d288b39163084063ab0f9489a754d1b82021-07-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2095881120300998https://doaj.org/toc/2095-8811Objective: The aim of this study is to develop and evaluate a set of psychometrically equivalent disyllabic wordlist (SC-10) in Singapore Mandarin for clinical use. Study design: A preliminary set of 1000 words were obtained from a dictionary of frequently used words by Singapore students. Ten native judges rate the familiarity level of each word. This is followed by a face-to-face public survey to rank the shortlisted word set from most to least familiar. The final 108 disyllabic words were recorded by a native female talker. 20 normal hearing subjects were used to obtain the percentage of correct word recognition at 24 intensity levels (−10 dB HL to 26 dB HL in 2 dB increment). Psychometric function slopes were calculated for each word. 100 words were eventually chosen and assigned into ten 10-word lists based on a psychometric balancing protocol. Minor digital adjustments were made to the intensity of each wordlist to improve their auditory homogeneity.The developed SC-10 wordlists were validated by a separate group of 25 normal hearing subjects. Test-retest reliability was carried out on 20 out of 25 participants at the selected intensity levels (SRT-5, SRT, SRT+5). Results: The calculated regression slopes in the psychometric functions for the ten lists are between 8.0 and 9.8%/dB. Single factor ANOVA analysis showed no significant difference in both the mean intensity required to obtain 50% recognition score (f = 0.109, df = 9, p = 0.999) and the slopes of the psychometric functions (f = 0.078, df = 9, p = 0.999) between the ten word lists. List validation on 25 normal hearing participants (PTA = 11.0 dB HL, SD = 4.3) showed a mean speech recognition threshold (SRT) of 9.3 dB HL (SD = 3.5)and regression slope of 8.395%/dB. Quadratic regression analysis showed a positive correlation (r2 = 0.923) between presentation level and word recognition score (WRS). The difference between PTA and SRT of each subject all fall within the clinically acceptable difference of 10 dB HL. Test-retest reliability, carried out on 20 subjects at three levels (SRT-5, SRT, and SRT+5 dB), showed no significance difference between word recognition score when the same participant is tested again at the same intensity level using a different wordlist. Conclusion: All in all, it shows that the SC-10 speech materials are valid for clinical use for Mandarin speech audiometry in Singapore.Gary Jek Chong LeeSteven Lock Hey LeeKeAi Communications Co., Ltd.articleSpeech audiometryWord recognition scoreDisyllabic word listMandarinChineseSingaporeOtorhinolaryngologyRF1-547SurgeryRD1-811ENWorld Journal of Otorhinolaryngology-Head and Neck Surgery, Vol 7, Iss 3, Pp 247-256 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Speech audiometry Word recognition score Disyllabic word list Mandarin Chinese Singapore Otorhinolaryngology RF1-547 Surgery RD1-811
spellingShingle	Speech audiometry Word recognition score Disyllabic word list Mandarin Chinese Singapore Otorhinolaryngology RF1-547 Surgery RD1-811 Gary Jek Chong Lee Steven Lock Hey Lee Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use
description	Objective: The aim of this study is to develop and evaluate a set of psychometrically equivalent disyllabic wordlist (SC-10) in Singapore Mandarin for clinical use. Study design: A preliminary set of 1000 words were obtained from a dictionary of frequently used words by Singapore students. Ten native judges rate the familiarity level of each word. This is followed by a face-to-face public survey to rank the shortlisted word set from most to least familiar. The final 108 disyllabic words were recorded by a native female talker. 20 normal hearing subjects were used to obtain the percentage of correct word recognition at 24 intensity levels (−10 dB HL to 26 dB HL in 2 dB increment). Psychometric function slopes were calculated for each word. 100 words were eventually chosen and assigned into ten 10-word lists based on a psychometric balancing protocol. Minor digital adjustments were made to the intensity of each wordlist to improve their auditory homogeneity.The developed SC-10 wordlists were validated by a separate group of 25 normal hearing subjects. Test-retest reliability was carried out on 20 out of 25 participants at the selected intensity levels (SRT-5, SRT, SRT+5). Results: The calculated regression slopes in the psychometric functions for the ten lists are between 8.0 and 9.8%/dB. Single factor ANOVA analysis showed no significant difference in both the mean intensity required to obtain 50% recognition score (f = 0.109, df = 9, p = 0.999) and the slopes of the psychometric functions (f = 0.078, df = 9, p = 0.999) between the ten word lists. List validation on 25 normal hearing participants (PTA = 11.0 dB HL, SD = 4.3) showed a mean speech recognition threshold (SRT) of 9.3 dB HL (SD = 3.5)and regression slope of 8.395%/dB. Quadratic regression analysis showed a positive correlation (r2 = 0.923) between presentation level and word recognition score (WRS). The difference between PTA and SRT of each subject all fall within the clinically acceptable difference of 10 dB HL. Test-retest reliability, carried out on 20 subjects at three levels (SRT-5, SRT, and SRT+5 dB), showed no significance difference between word recognition score when the same participant is tested again at the same intensity level using a different wordlist. Conclusion: All in all, it shows that the SC-10 speech materials are valid for clinical use for Mandarin speech audiometry in Singapore.
format	article
author	Gary Jek Chong Lee Steven Lock Hey Lee
author_facet	Gary Jek Chong Lee Steven Lock Hey Lee
author_sort	Gary Jek Chong Lee
title	Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use
title_short	Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use
title_full	Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use
title_fullStr	Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use
title_full_unstemmed	Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use
title_sort	development of sc-10: a psychometrically equivalent singapore mandarin disyllabic word list for clinical speech audiometry use
publisher	KeAi Communications Co., Ltd.
publishDate	2021
url	https://doaj.org/article/d288b39163084063ab0f9489a754d1b8
work_keys_str_mv	AT garyjekchonglee developmentofsc10apsychometricallyequivalentsingaporemandarindisyllabicwordlistforclinicalspeechaudiometryuse AT stevenlockheylee developmentofsc10apsychometricallyequivalentsingaporemandarindisyllabicwordlistforclinicalspeechaudiometryuse
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Development of SC-10: A psychometrically equivalent Singapore Mandarin disyllabic word list for clinical speech audiometry use

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