Reproducibility of sweep frequency audiometry
article
Results are given of an investigation into the reproducibility of audiograms recorded by manual sweep frequency audiometers. The standard deviation of a measured hearing level is 3 dB at 250 Hz up to 7 dB at 8000 Hz. To conclude from two audiograms that an actual increase in the hearing level has occurred at a given frequency, this increase must be at least 10 dB at frequencies below 4000 Hz, at least 15 dB at frequencies from 4000 to 63000 Hz, and at least 20 dB at 8000 Hz (5% confidence level), irrespective of whether the audiograms were recorded by the same or by different audiometrists.
TNO Identifier
227763
ISSN
15298663
Source
American Industrial Hygiene Association Journal, 35(6), pp. 366-369.
Pages
366-369
Files
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