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. 2015 Dec 17;19:2331216515617917. doi: 10.1177/2331216515617917

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© The Author(s) 2015

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page(https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Correlation between perceptually measured and instrumentally predicted speech intelligibility improvements. Kendall’s τ for correlations between the average SRT₅₀ improvements determined from measurements in bilateral CI users in this study and average instrumental measures results from iSNR (left panel), STOI (middle panel), and PESQ (right panel) measures are represented here. Each algorithm is represented by its corresponding number (compare Table 1). The color codes for the three different test scenarios. The dash-dotted line in left panel represents instances where improvements in iSNR and improvements in SRT₅₀ are equal in magnitude. In the boxes, Kendall’s τ is given for each test scenario independently as well as an overall score across all test scenarios.