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American Journal of Audiology Vol.15 75-80 June 2006. doi:10.1044/1059-0889(2006/009)
© American Speech-Language-Hearing Association
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Research and Technology | Articles

Test–Retest Reliability of In Situ Unaided Thresholds in Adults

Laura Smith-Olinde, Nannette Nicholson, Courtney Chivers and Patricia Highley

University of Arkansas for Medical Sciences, University of Arkansas at Little Rock

D. Keith Williams

University of Arkansas for Medical Sciences, Little Rock

Contact author: Laura Smith-Olinde, 120 Speech Building, University of Arkansas at Little Rock, 2801 S. University, Little Rock, AR 72204. Email: lso{at}uams.edu

PURPOSE: The purpose of this study was to examine test–retest reliability of in situ unaided thresholds measured using a handheld hearing aid programmer coupled to a hearing aid transducer in adults with normal hearing.

METHOD: Randomized in situ thresholds at 4 octave frequencies were established in 1 ear of 43 adults twice using the Widex Diva SP3 device with the stimulus generated by and transduced through a Widex Diva SD-9 behind-the-ear hearing aid. Insert earphone tips were used in each of the measures to couple the hearing aid/transducer to the ear canal.

RESULTS: Mean decibel differences between the test and retest thresholds were less than 1 dB at each frequency. Using an 80% statistical test criterion, results revealed test–retest reliability within 5 dB for all frequencies: 98% at 500 Hz, 100% at 1000 and 2000 Hz, and 93% at 4000 Hz.

CONCLUSIONS: Test–retest reliability of in situ unaided thresholds using the SP3/SD-9 device is equivalent to that of currently accepted audiometric procedures.

Key Words: amplification, in situ thresholds


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