Digit Speech Recognition Threshold (SRT) in Children with Normal Hearing Ages 5–8 years Purpose The purpose of this study was to compare digit stimuli to popular spondees when measuring speech recognition threshold (SRT) in children with normal hearing and to determine the influence of increment size using a descending method (ASHA, 1988). Method SRT was measured with paired digit stimuli (D-SRT) ... Research Article
Research Article  |   June 01, 2014
Digit Speech Recognition Threshold (SRT) in Children with Normal Hearing Ages 5–8 years
 
Author Affiliations & Notes
  • Ishara Ramkissoon
    University of South Alabama, Mobile
  • Julie M. Estis
    University of South Alabama, Mobile
  • Ashley Gaal Flagge
    University of South Alabama, Mobile
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to Ishara Ramkissoon: ramkissoon@southalabama.edu
  • Editor: Larry Humes
    Editor: Larry Humes×
Article Information
Hearing & Speech Perception / Hearing Disorders / Research Articles
Research Article   |   June 01, 2014
Digit Speech Recognition Threshold (SRT) in Children with Normal Hearing Ages 5–8 years
American Journal of Audiology, June 2014, Vol. 23, 182-189. doi:10.1044/2014_AJA-13-0039
History: Received August 2, 2013 , Revised December 20, 2013 , Accepted January 5, 2014
 
American Journal of Audiology, June 2014, Vol. 23, 182-189. doi:10.1044/2014_AJA-13-0039
History: Received August 2, 2013; Revised December 20, 2013; Accepted January 5, 2014

Purpose The purpose of this study was to compare digit stimuli to popular spondees when measuring speech recognition threshold (SRT) in children with normal hearing and to determine the influence of increment size using a descending method (ASHA, 1988).

Method SRT was measured with paired digit stimuli (D-SRT) and pediatric word stimuli (W-SRT) using 2 step sizes (5 dB, 2 dB) in 30 typically developing children with normal hearing ages 5;0 (years;months) to 8;11. Pure-tone and SRT tests were administered in both ears. The D-SRT and W-SRT were compared to pure-tone average (PTA) thresholds per ear.

Results Analysis of variance revealed a significant interaction of test and step size: PTA was significantly lower when measured with 2-dB than with 5-dB increment; however, step size yielded no differences in D-SRT and W-SRT. Right ear thresholds across tests were significantly lower than left ear. Pearson correlations were significant for all tests except two; D-SRT was highly correlated to W-SRT (r = .49–.72) in both ears. Regression analyses for both ears and step sizes revealed that prediction of the hearing threshold for speech from PTA was equally accurate for SRT measured with digit pairs or popular pediatric spondee stimuli.

Conclusion Digit pairs are an appropriate alternative stimulus for SRT measurement in children with normal hearing. Future diagnostic audiology implications, including application for other pediatric populations, are discussed.

Acknowledgments
We thank Elizabeth Adams, who spoke the recorded stimuli, and speech pathology graduate assistants, who assisted in data collection. The data in this study were initially presented in April 2013 at the Audiology Now! Conference in Anaheim, California.
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