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The validity of an isiZulu speech reception threshold test for use with adult isiZulu speakers
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Abstract:
Background: This study continued the development of an isiZulu speech reception threshold (zSRT) test for use with first language, adult speakers of isiZulu.Objectives: The objective of this study was to determine the convergent and concurrent validity of the zSRT test.Methods: One hundred adult isiZulu first-language speakers with normal hearing and 76 first-language, adult isiZulu speakers with conductive or sensorineural hearing losses ranging from mild to severe were assessed on pure tone audiometry and a newly developed isiZulu SRT test. Convergent validity was established through agreement of the zSRT scores with pure tone average (PTA) scores. Concurrent validity was assessed by examining the steepness of the psychometric curve for each word in the zSRT test for each type and degree of hearing loss.Results: Intraclass correlation coefficient analyses showed zSRT scores were in substantial to very high agreement with PTA scores for the normal hearing and hearing loss groups (NH – right ear ICC consistency = 0.78, left ear ICC = 0.67; HL – right ear ICC consistency = 0.97, left ear ICC consistency = 0.95). The mean psychometric slope (%/dB) at 50% correct perception for all words in the zSRT test was 4.92%/dB for the mild conductive hearing loss group, 5.26%/dB for the moderate conductive hearing loss group, 2.85%/dB for the moderately severe sensorineural hearing loss group and 2.47%/dB for the severe sensorineural hearing loss group. These slopes were appropriate for the degree of hearing loss observed in each group.Conclusion: The zSRT test showed convergent and concurrent validity for assessing SRT in first language, adult speakers of isiZulu.
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Keyword:
1203 Language and Linguistics; 2805 Cognitive Neuroscience; 3205 Experimental and Cognitive Psychology; 3315 Communication; 3616 Speech and Hearing; General Medicine
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URL: https://espace.library.uq.edu.au/view/UQ:9aca46d
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Learning difficulties and auditory processing deficits in a clinical sample of primary school-aged children
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Semantic processing in children with cochlear implants: evidence from event-related potentials
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On the definition of APD and the need for a conceptual model of terminology
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The ‘acoustic health’ of primary school classrooms in Brisbane, Australia
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Reading development in children with cochlear implants who communicate via spoken language: A psycholinguistic investigation
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No evidence for enhanced processing of speech that is low-pass filtered near the edge frequency of cochlear dead regions in children
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Is an advanced audiology-led service the solution to the paediatric ENT outpatient waiting list problem?
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Spelling in children with cochlear implants: evidence of underlying processing differences
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Improved signal-to-noise ratio and classroom performance in children with autism spectrum disorder: a systematic review
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A tool for assessing case history and feedback skills in audiology students working with simulated patients
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Simulated patients versus seminars to train case history and feedback skills in audiology students: a randomized controlled trial
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Rates of hearing loss in primary school children in Australia: a systematic review
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Identifying a context-effective school hearing screening test: An emic/etic framework
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