“…Different studies found significantly discrepant magnitudes for the phenomenon of release from masking which is observed in the MLD, with a hearing threshold improvement in the antiphasic condition ranging from 6.95 to 14.60 dB in comparison to the homophasic condition [19,[22][23][24]26,30,32]. Regarding normality criteria, investigations using the "mean minus 2 standard deviations (SD)" method recommended by most CAPD guidelines [1,2,[13][14][15] suggested the cutoff points of 7.87 [26] and 9.30 dB [22]. However, depending on factors such as the psychometric properties of each test, the patient's clinical history, and performance in other CAP tests, diverse cutoff criteria have been suggested, such as percentile 2.5 [32], percentile 10 [33,34], mean minus 1 or 1.5 SD [35], and mean minus 3 SDs [1,2].…”