TABLE II.
Standardized regression coefficients and R2 values for multiple linear regression analyses relating source measures to the first two PCs for each speaker. “—” denotes not significant. All other values are significant at p < 0.01. Percentage of variance accounted for by each PC is shown in parentheses.
| Speak | OQ | AC | R2 | |
|---|---|---|---|---|
| F1 | PC1 (80%) | −0.92 | 0.08 | 0.95 |
| PC2 (12%) | −0.77 | −1.17 | 0.82 | |
| F2 | PC1 (54%) | −0.29 | 0.66 | 0.75 |
| PC2 (23%) | −0.97 | −0.91 | 0.73 | |
| F3 | PC1 (74%) | −0.68 | 0.38 | 0.94 |
| PC2 (20%) | −0.93 | −1.14 | 0.78 | |
| M1 | PC1 (78%) | −0.57 | 0.42 | 0.93 |
| PC2 (16%) | −0.99 | −1.14 | 0.23 | |
| M2 | PC1 (76%) | −0.69 | −0.34 | 0.96 |
| PC2 (16%) | 1.13 | 1.25 | 0.58 | |
| M3 | PC1 (82%) | −0.92 | — | 0.86 |
| PC2 (8%) | — | — | 0.05 |