Table 4. Fixed effects for the Native model (Experiment 2)

Term	β	SE	z-value	p-value	95% CI
(Intercept)	0.186	0.551	0.34	.736	[–0.894, 1.265]
Spectral step	1.548	0.128	12.10	<.001	[1.298, 1.799]
Duration step	0.279	0.053	5.26	<.001	[0.175, 0.383]
Accent=Korean	–0.607	0.195	–3.12	.002	[–0.989, –0.226]
Talker 2	–0.018	0.126	–0.15	.884	[–0.266, 0.229]
Talker 3	–0.687	0.130	–5.31	<.001	[–0.941, –0.433]
Talker 4	1.432	0.132	10.84	<–.001	[1.173, 1.691]
List	–0.359	0.347	-1.04	.300	[–1.039, 0.321]
Spectral step×Duration step	–0.018	0.020	-0.90	.369	[–0.058, 0.021]
Spectral step×Accent=Korean	0.050	0.152	0.33	.744	[–0.249, 0.349]
Duration step×Accent=Korean	0.135	0.061	2.21	.027	[0.015, 0.254]
Spectral step×Duration step×Accent=Korean	0.027	0.040	0.67	.501	[–0.051, 0.105]

Talker was sum-coded with Talker 1 as the reference level.