4 women and 4 men with normal hearing sensitivity were tested for variability in distortion-product otoacoustic emissions, with two measurement sessions per day for 4 days spread over a 2-wk. period. Most test-retest variations were small, on the order of 2 dB. Extreme variations of 6 dB or greater occurred most often at the highest test frequency and should not be considered clinically positive unless such differences are found at lower frequencies also.
Get full access to this article
View all access options for this article.
References
1.
BeattieR. C., & BleachJ. (2000) Effects of sample size on the reliability of noise floor of DPOAE. British Journal of Audiology, 34, 305–309.
2.
DharS.LongG. R., & CulpepperN. B. (1998) The dependence of the distortion product 2f1–f2 on primary levels in non-impaired human ears. Journal of Speech, Language and Hearing Research, 41, 1307–1318.
3.
FranklinD. J.McCoyM. J.MartinG. K., & Lonsbury-MartinB. L. (1992) Test/retest reliability of distortion product and intransiently evoked otoacoustic emissions. Ear and Hearing, 13, 417–429.
4.
KempD. T. (1978) Stimulated acoustic emissions from within the human auditory system. Journal of the Acoustical Society of America, 64, 1386–1391.
5.
LaskyR. E.PearlmanJ., & HecoxK. (1992) Distortion-product otoacoustic emissions in human newborns and adults. Ear and Hearing, 13, 430–441.
6.
RoedeJ.HarrisF. P.ProbstR., & XuL. (1991) Repeatability of distortion product otoacoustic emissions in normally hearing humans. Audiology, 32, 273–281.
7.
ZhaoF., & StephensD. (1999) Test-retest variability of distortion-product otoacoustic emissions in human ears with normal hearing. Scandinavian Audiology28, 171–178.
