Examination of Two Issues concerning Functional Gain Measurements The test-retest variability of aided sound-field thresholds and the feasibility of using corrected 2-cm3 coupler gain values to predict individual functional gain were examined. Test-retest data were used to generate critical differences (in dB) for statistical significance between two aided sound-field thresholds. To be significantly different at the .05 level, ... Reports
Reports  |   February 01, 1987
Examination of Two Issues concerning Functional Gain Measurements
 
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Article Information
Reports   |   February 01, 1987
Examination of Two Issues concerning Functional Gain Measurements
Journal of Speech and Hearing Disorders, February 1987, Vol. 52, 56-63. doi:10.1044/jshd.5201.56
History: Received March 18, 1986 , Accepted July 2, 1986
 
Journal of Speech and Hearing Disorders, February 1987, Vol. 52, 56-63. doi:10.1044/jshd.5201.56
History: Received March 18, 1986; Accepted July 2, 1986

The test-retest variability of aided sound-field thresholds and the feasibility of using corrected 2-cm3 coupler gain values to predict individual functional gain were examined. Test-retest data were used to generate critical differences (in dB) for statistical significance between two aided sound-field thresholds. To be significantly different at the .05 level, two aided thresholds would have to differ by greater than 15 dB. Functional gain and 2-cm3 coupler gain were compared for 20 subjects using careful measurement procedures. Individual variability in the difference between functional gain and 2-cm3 coupler gain was reduced substantially from previous studies and indicates that corrected coupler gain measurements may have some clinical utility.

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