An Investigation of List Equivalency of the Northwestern University Auditory Test No. 6 in Interrupted Broadband Noise The equivalency of Lists 1 to 4 of the Northwestern University Auditory Test No. 6 (NU-6; T. W. Tillman & R. Carhart, 1966) was investigated in interrupted broadband noise. Forty-eight young adults with normal hearing participated. All lists were administered at 50 dB sensation level re: listener spondee recognition thresholds ... Research Article
Research Article  |   June 01, 2004
An Investigation of List Equivalency of the Northwestern University Auditory Test No. 6 in Interrupted Broadband Noise
 
Author Affiliations & Notes
  • Andrew Stuart, PhD
    Department of Communication Sciences and Disorders, East Carolina University, Greenville, NC 27858-4353
  • Corresponding author: e-mail: stuarta@mail.ecu.edu
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Professional Issues & Training / Research and Technology / Research Articles
Research Article   |   June 01, 2004
An Investigation of List Equivalency of the Northwestern University Auditory Test No. 6 in Interrupted Broadband Noise
American Journal of Audiology, June 2004, Vol. 13, 23-28. doi:10.1044/1059-0889(2004/005)
History: Received February 10, 2004 , Accepted March 26, 2004
 
American Journal of Audiology, June 2004, Vol. 13, 23-28. doi:10.1044/1059-0889(2004/005)
History: Received February 10, 2004; Accepted March 26, 2004

The equivalency of Lists 1 to 4 of the Northwestern University Auditory Test No. 6 (NU-6; T. W. Tillman & R. Carhart, 1966) was investigated in interrupted broadband noise. Forty-eight young adults with normal hearing participated. All lists were administered at 50 dB sensation level re: listener spondee recognition thresholds at signal-to-noise ratios (S/Ns) of 10, 5, 0, –5, –10, –15, –20, –25, and –30 dB. Significant differences in listener performance were observed only at S/Ns ranging from 10 to –10. Significant mean list differences varied from 5.8% to 12.0%. These findings support the notion that caution should be exercised in the interpretation of listener performance differences with NU-6 stimuli presented in a background of interrupted noise.

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