Table 2.

GLMM binomial model results for the /ʃ/-/s/ contrast

	Fixed Effects	Estimate	Std. Error	z-statistic	p-value
	Default condition (normal speech)
β1	Intercept	−8.93	1.21	−7.40	< .001
β2	Continuum Step (slope)	4.42	0.54	8.23	< .001
	Intercept interactions
β3	Intercept : 0 mm Shift	−0.60	1.91	−0.31	.75
β4	Intercept : 2 mm Shift	1.69	1.75	0.97	.33
β5	Intercept : 4 mm Shift	6.39	1.38	4.63	< .001
β6	Intercept : 6 mm Shift	9.79	1.41	6.96	< .001
	Slope interactions
β7	Continuum Step × 0mm Shift	−0.49	0.85	−0.58	.56
β8	Continuum Step × 2mm Shift	−0.89	0.83	−1.07	.28
β9	Continuum Step × 4mm Shift	−2.48	0.63	−3.92	< .001
β10	Continuum Step × 6mm Shift	−3.68	0.58	−6.34	< .001