Table 3.
Results of the logistic multiple regression analysis on acoustic-phonetic properties and talker dialect affiliation. For each of the dialect groups, the significant acoustic measures are shown with their regression coefficients and the overall r2 showing model fit
| Significant variables | Regression coefficients | Overall r2 | |
|---|---|---|---|
| New England | r-fulness | −0.01 | 0.33 |
| /æ/ backness | 0.02 | ||
| North | /oʊ/ diphthong | −0.01 | 0.21 |
| /æ/ diphthong | −0.01 | ||
| North Midland | n/a | ||
| South Midland | /u/ backness | −0.01 | 0.19 |
| /oʊ/ backness | 0.01 | ||
| South | fricative voicing | 3.4 | 0.21 |
| West | n/a |