Table 5 The results of linear mixed-effects models on temporal lag between vertical jaw maxima and vertical lower lip maxima

	Estimate	SE	df	t value	Pr(>|t|)
(intercept)	-0.37	0.20	10.75	-1.83	p>0.05
Speech rate [fast]	-0.34	0.13	189.32	-2.58	p<0.05
Boundary[within-word]	1.40	0.13	190.28	10.62	0<0.0001

Note: Number of observations: 196. Groups: subject, 7.