Original Research

The performance of South African English first language child speakers on a "low linguistically loaded" central auditory processing test protocol

Nicole G. Campbell, Wayne J. Wilson
South African Journal of Communication Disorders | Vol 50, No 1 | a211 | DOI: https://doi.org/10.4102/sajcd.v50i1.211 | © 2019 Nicole G. Campbell, Wayne J. Wilson | This work is licensed under CC Attribution 4.0
Submitted: 11 October 2016 | Published: 31 December 2003

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Nicole G. Campbell, Department of Communication Pathology, University of Pretoria, South Africa
Wayne J. Wilson, School of Health and Rehabilitation Sciences, University of Queensland, Australia

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The lack of standardized tests for central auditory processing disorders (CAPD) in South Africa (SA) led to the formation of a SA CAPD Taskforce,and the interim development of a "Low Linguistically Loaded" CAPD test protocol using test recordings from the 'Tonal and Speech Materials for Auditory Perceptual Assessment Disc 2.0'. This study compared the performance of 50 SA English first language child speakers (aged 8 to 12 years of age) on this protocol, with the previously published American normative data of Bellis (1996, 2003). Results with respect to predicted pass criteria as calculated by mean-2SD cutoffs,suggested that the SA speakers performed of a lower level than the American speakers by an average of 5.3% per ear for the two pair dichotic digits test, 1.9 dB for the masking level difference test,8.8% per ear for the frequency pattern test - humming report, 14.5% per ear for the frequency patterns test - verbal report,and 39.7% per ear for the low pass filtered speech test. Consequently, the Bellis (1996, 2003) data was not considered appropriate for immediate use as normative data in SA. Instead, the preliminary data provided in this study was recommended as interim normative data for SA English first language child speakers until larger scale SA normative data can be obtained.


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