Abstract: In 35 adult human subjects (58 ears) thresholds of rarefaction click evokedotoacoustic emissions (EOAE),behaviour responses (BR) and auditory brainstem responses(ABR) were measured and compared, and correlation coefficients among them calculated.The results revealed that 86% of the measured thresholds were in the range from 10 to 45 dB(nHL) for EOAE,88% from 10 to 25 dB for BR,and 88% from 10 to 35 dB for ABR. Thecorrelation coefficients(γ) for the whole threshold samples were 0. 415(p<0.002)for EOAEvs BR, 0. 501 (p<0. 001)for EOAE vs ABR and 0. 702 (p< 0. 001) for ABR vs BR, allindicating highly significant correlation. However, for those ears whose BR, ABR or EOAEthresholds were elevated, equaling or exceeding 25 dB, significant correlation betweenthresholds of EOAE and BR and of EOAE and ABR no more existed (γ range:0. 176 -0. 310,p>0. 05). In contrast, significant correlation between BR and ABR thresholds in thesame conditions still remained (γ:0. 533- 0. 720, p<0.05). The experimental resultsindicate that the correlation between EOAE and hearing thresholds is significant only forsubjects with normal or slightly lost hearing. EOAE is valuable in audiometry only as anaccessory tool.