Table 3.
Correlation coefficients (r denotes Pearson; r s denotes Spearman) between LDA input variables and WAB AQ scores.
| Predictor | Correlation coefficient |
|---|---|
| 1 Hz–2 Hz band | r = −.20, p = .14 |
| 4 Hz–8 Hz band | r = .34,* p = .009 |
| 16 Hz–32 Hz band | r = −.47,* p < .001 |
| VOT-SDvoiced | r s = −.09, p = .51 |
| VOT-SDVoiceless | r = −.23, p = .08 |
| nPVI-V | r = .22, p = .09 |
| Distortion errors | r s = −.48,* p < .001 |
Note. LDA = linear discriminant analysis; WAB AQ = Western Aphasia Battery Aphasia Quotient; VOT-SD = standard deviation of voice onset time; nPVI-V = normalized Pairwise Variability Index–Vowels.
Correlations significant at the Bonferroni-corrected p value of p = .007 (p = .05/7 comparisons).