Table 2. Output summary of mixed-effects logistic regression for frication duration (in seconds)

	β	Std. error	p-value
(Intercept)	0.122	0.012	<.001***
AGEchildren	0.007	0.015	.630
AGEteenager	–0.021	0.015	.161
AGEyoungAdult	–0.023	0.017	.191
TYPEfortis	0.000	0.016	.988
AGEchildren:TYPEfortis	0.036	0.019	.058*
AGEteenager:TYPEfortis	0.058	0.018	.002**
AGEyoungAdult:TYPEfortis	0.056	0.021	.007**

p<.05,
p<.01,
p<.001.