. 2023 Aug 23;154(2):1152–1167. doi: 10.1121/10.0020539

TABLE IV.

Fixed effects results of GCA with the intelligible speech masking condition as the reference condition, using reverse Helmert coding, conditions ordered as follows: (1) unmodulated noise maskers, (2) modulated noise maskers, (3) intelligible speech maskers. Significant effects are denoted in bold.

	Estimate	Standard error	df^a	t-value	Significance
(Intercept)	100.5239	30.8596	15	3.257	<0.01
Factor1^b	1.6835	1.6549	2460	1.017	0.309
Factor2 ^c	16.8560	0.9554	2460	17.642	<0.001
poly1	−43.2519	149.1077	15	−0.290	0.776
poly2	−512.6362	50.2481	15	−10.202	<0.001
poly3	−167.6486	41.8759	15	−4.003	<0.01
poly1: Factor1 ^b	−43.5871	12.3839	2460	−3.520	<0.001
poly1: Factor2 ^c	92.3346	7.1498	2460	−12.914	<0.001
poly2: Factor1 ^b	−52.3239	12.3839	2460	−4.225	<0.001
poly2: Factor2 ^c	−14.4205	7.1498	2460	−2.017	<0.05
poly3: Factor1^b	4.5410	12.3839	2460	0.367	0.714
poly3: Factor2 ^c	−17.9502	7.1498	2460	−2.511	<0.05

^{^a}

Degrees of freedom (df).

^{^b}

Factor1 = modulated noise masking condition vs unmodulated noise masking condition.

^{^c}

Factor2 = intelligible speech masking condition vs the average of the modulated and unmodulated noise masking conditions.