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Accuracy of Hearing Prediction by the Acoustic Reflex
Author(s) -
Hall James W.,
Koval Charles B.
Publication year - 1982
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.1982.92.2.140
Subject(s) - bivariate analysis , acoustic reflex , audiology , hearing loss , regression analysis , regression , absolute threshold of hearing , statistics , mathematics , medicine
Seven methods of hearing loss prediction from acoustic reflex data were compared in 225 adult subjects. The prediction methods were two versions of Sensitivity Prediction by the Acoustic Reflex (SPAR), four regression equations and a bivariate plot technique. Accuracy of hearing prediction varied significantly among methods. Hearing loss was identified most accurately with the bivariate plot technique. One SPAR version best categorized degree of hearing loss. With two of the regression equations, predicted hearing threshold level (HTL) was within ± 15 dB of actual HTL in two‐thirds of the subjects. When hearing level was categorized, all methods produced a sizeable proportion of predictive errors (29 to 48%). Serious errors, however, were uncommon. Accuracy of hearing loss prediction among methods was assessed as a function of subject age and minor impedance aberration. In general, neither factor was associated with a statistically significant change in predictive accuracy.