| Abstrakt: |
The purpose of this study was done to determine intrasubject low- and high-frequency hearing threshold reliability. Low-frequency (1, 4, 8 kHz) and high-frequency (10, 12, 14, 16, 18 kHz) thresholds were obtained on each ear of 30 normal hearing young adult subjects over four trials separated by i but no more than 2 weeks using a Beltone 2000 audiometer. At each frequency, the thresholds were not significantly different for the first versus second ear tested or for the four trials. Between trial threshold differences for each possible trial minus trial threshold combination (N = 6) were determined for each ear of each subject at each frequency. For the possible 2880 between trial threshold comparisons (6 trial combinations = 8 frequencies = 30 subjects = 2 ears), only 23 resulted in threshold differences >= ± 11 dB. It was concluded that repeated intrasubject high-frequency thresholds were as reliable as for the lower frequencies. Clinical implications regarding high-frequency serial monitoring of hearing thresholds will be discussed. [ABSTRACT FROM AUTHOR] |
