Table 6. Generalised linear mixed model output on error proportions.

	Errors
Predictors	Odds Ratios	CI	Statistic	p
(Intercept)	3.44	2.56 – 4.62	8.21	<0.001
Trial	1.04	0.98 – 1.10	1.33	0.184
Upload speed	0.92	0.69 – 1.23	-0.53	0.593
Word freq	1.29	1.05 – 1.58	2.39	0.017
Phonotactic freq	1.01	0.82 – 1.24	0.11	0.915
Download speed	1.15	0.83 – 1.59	0.85	0.394
Upload speed*word freq	1.02	0.94 – 1.10	0.48	0.629
Upload speed*phonotactic freq	1.11	1.03 – 1.19	2.64	0.008
Word*phonotactic freq	0.98	0.80 – 1.21	-0.15	0.877
Download speed*word freq	0.99	0.91 – 1.08	-0.12	0.905
Download speed*phonotactic freq	0.96	0.89 – 1.05	-0.83	0.405
Upload speed*word freq*phonotactic freq	0.98	0.91 – 1.06	-0.40	0.690
Download speed*word freq*phonotactic freq	0.97	0.89 – 1.06	-0.59	0.553
Random Effects
Residual variance	3.29
Item intercept	2.23
Participant intercept	0.44
N participant	39
N item	220
Observations	8527

Statistics are z values, and p values in bold are lower than the conventional 0.05 threshold. Freq: frequency.