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. 2020 Apr 29;11:744. doi: 10.3389/fpsyg.2020.00744

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Copyright © 2020 Colsman, Supp, Neumann and Schneider.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Mean difference in hearing levels within each frequency over participants and ears. Dashed lines show upper (+10 dB HL) and lower (–10 dB HL) boundary of the interval of equivalence (and ±13 dB HL for 6000 and 8000 Hz).