Table 5.
Unstandardized beta coefficients and p values for LME models investigating the changes in articulatory measures, with speaking rate as a predictor.
| Articulator | Outcome measure | Predictor | Fixed covariates | b | p |
|---|---|---|---|---|---|
| T+J | Movement range (mm) | Speaking rate (WPM) | Sex; J range (mm) | 0.02 | .009* |
| Maximum movement speed (mm/s) | Speaking rate (WPM) | Sex; J maximum speed (mm/s) | 0.59 | < .001** | |
| J | Movement range (mm) | Speaking rate (WPM) | Sex | −0.003 | .465 |
| Maximum movement speed (mm/s) | Speaking rate (WPM) | Sex | −0.70 | < .001** | |
| Movement duration (s) | Speaking rate (WPM) | Sex | −0.001 | .095 |
Note. LME = linear mixed effects; T+J = tongue and jaw; J = jaw; WPM = words per minute.
*
Significant at alpha = .05.
**
Significant at alpha = .01.