Table 1. Results of the full GLMM across both participant groups with accuracy as dependent variable.

Predictor	Estimate	SE	χ2	p
Intercept)	3.313	0.168
Group	-0.282	0.168	2.69	0.101
Instruction	0.000	0.078	0.00	0.998
Posture	-0.211	0.038	20.48	<0.001
Congruency	0.352	0.040	40.33	<0.001
Movement Context	-0.099	0.043	4.54	0.033
Group X Instruction	0.034	0.078	0.19	0.662
Group X Posture	0.046	0.039	1.43	0.232
Instruction X Posture	0.027	0.034	0.63	0.428
Group X Congruency	0.147	0.04	12.09	0.001
Instruction X Congruency	0.169	0.034	23.35	<0.001
Posture X Congruency	-0.365	0.034	120.5	<0.001
Group X Movement Context	0.080	0.043	3.47	0.063
Instruction X Movement Context	-0.004	0.034	0.02	0.901
Posture X Movement Context	-0.038	0.034	1.20	0.273
Congruency X Movement Context	0.035	0.034	1.06	0.304
Group X Instruction X Posture	-0.047	0.034	1.85	0.174
Group X Instruction X Congruency	0.145	0.034	17.57	<0.001
Group X Posture X Congruency	-0.113	0.034	10.75	0.001
Instruction X Posture X Congruency	0.260	0.034	58.31	<0.001
Group X Instruction X Movement Context	0.044	0.034	1.64	0.201
Group X Posture X Movement Context	-0.022	0.034	0.42	0.519
Instruction X Posture X Movement Context	-0.051	0.034	2.20	0.138
Group X Congruency X Movement Context	0.023	0.034	0.47	0.493
Instruction X Congruency X Movement Context	0.018	0.034	0.27	0.605
Posture X Congruency X Movement Context	0.004	0.034	0.01	0.915
Group X Instruction X Posture X Congruency	0.129	0.034	13.83	<0.001
Group X Instruction X Posture X Movement Context	0.054	0.034	2.46	0.117
Group X Instruction X Congruency X Movement Context	-0.010	0.034	0.09	0.766
Group X Posture X Congruency X Movement Context	-0.030	0.034	0.77	0.380
Instruction X Posture X Congruency X Movement Context	-0.043	0.034	1.62	0.203
Group X Instruction X Posture X Congruency X Movement Context	0.000	0.034	0.00	0.993

Summary of the fixed effects in the GLMM of the combined analysis of sighted and blind groups. Coefficients are reported in logit units. Bolded values indicate significance at p < 0.05. Values shown in italics indicate a trend towards significance at p < 0.1. Test statistics are χ² -distributed with 1 degree of freedom.