Fig. 8.

Scatterplot of 0-dB QuickSIN scores by standardized residuals of auditory steady-state response (ASSR) phase-locking value (PLV) for all 3 modulation depths. The x-axis is the standardized residuals of phase-locking value after controlling for pure-tone thresholds from 2 to 4 kHz. Each symbol represents data from a single participant. Closed triangles indicate younger participants, and open circles indicate older participants. Zero-inflated beta regressions were implemented within a GAMLSS framework that separately models QuickSIN scores equal to 0 and QuickSIN scores between 0 and 1. P values indicate significance of regression coefficient estimates. *QuickSIN scores are significantly predicted by PLV at −8 and at −4 dB modulation, after controlling for multiple comparisons and calculation of 95% confidence intervals.