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. Author manuscript; available in PMC: 2020 Aug 4.
Published in final edited form as: Clin Linguist Phon. 2019 Aug 4;33(10-11):885–898. doi: 10.1080/02699206.2019.1584247

Table 2.

Potential consonant accuracy cutoff values predictive of phoneme status

Maximum Efficiency Youden’s Index Closest to ROC (0,1)
Cutoff 20.4% 21.1% 30.2%
Class. 90.1% 90.0% 89.1%
Sens. 94.9% 83.6% 90.9%
Spec. 83.1% 88.9% 86.6%

Note. Cutoff = optimum percent accuracy cutoff value. Class. = classification accuracy. Sens. = sensitivity. Spec. = specificity.