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. Author manuscript; available in PMC: 2009 Feb 18.
Published in final edited form as: J Acoust Soc Am. 2006 Oct;120(4):2177–2189. doi: 10.1121/1.2225416

FIG. 2.

FIG. 2

Examples of adaptive tracts (3-down-1-up) for one child (A) and one adult (C) are shown. Interferer level remained fixed at 60 dB SPL. A sigmoidal function [(B), (D)] was fit to the raw data from each adaptive track, and a maximum likelihood estimate (MLE) procedure was used to estimate threshold at a performance level of 80% correct. The legend reports the associated estimates.