Copyright © American Speech-Language-Hearing Association From: Reading Behind the Lines: The Factors Affecting the Text Reception Threshold in Hearing Aid Users J Speech Lang Hear Res. Published online February 13, 2018.1-14 doi:10.1044/2017_JSLHR-H-17-0196 Legend: Median and interquartile range of the pure-tone hearing thresholds of the best ear. The International Organization for Standardization (ISO) 7029 (2000) provides descriptive statistics of the hearing threshold deviation for populations of otologically healthy persons of various ages under monaural earphone listening conditions. Date of download: 3/2/2018 Copyright © American Speech-Language-Hearing Association