Effects of Testing Methods on Hearing Thresholds

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Abstract
INTRODUCTION As reported in Hirsh,8 "The determination of the [absolute] threshold for a tone of a particular frequency for any one individual is complicated by many problems inherent in psychophysical measurement.... The threshold would be different according as the response, the psychophysical technique, and the measurement of the stimulus were of different kinds. Unfortunately, there are not many data that clearly demonstrate these relations. To be sure, the clinical literature is filled with interesting reports of different thresholds measured on the same patients by two operators, by the same operator with different audiometers, etc. But the majority of these involve too many sources of variability at once." It appears therefore that, while advances in audiometry are both desirable and essential, new techniques should not be generally applied in the clinic until such time as adequate investigations have been conducted to determine the relative merits and limitations of proposed changes

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