A Comparison of Manual Methods for Measuring Hearing Levels

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Abstract
A comparison was made of 3 manual methods for measuring pure-tone sensitivity; first, a method proposed by the Education Committee of the British Society of Audiology (BSA), 2nd, a method recommended by the American Speech and Hearing Association (ASHA) and 3rd a shortened version of the ASHA method. Normally-hearing [9] and 5 hearing-impairted subjects from differing educational backgrounds were tested at 1.0 kHz 15 .times. on each method. False-positive reponses were noted throughout the testing and in a 20 s time-out period. Each threshold run was timed. The subjects were asked to rate each threshold run on a 10-point scale for ease of the task. No significant differences among the 3 methods were found in their threshold estimates SD, number of false-positive responses or subject preferences. The ASHA method took longer and required more tone presentations to establish threshold. The number of successive tone presentations to which the subject did not respond was counted. The BSA method produced more and longer silent intervals than the other 2 methods.

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