Table 4.

Estimated marginal means for the Group × Condition × Length mixed-effects models.

Utterance length	Habitual speech			Slow speech
	Estimate	SE	95% CI	Estimate	SE	95% CI
Mild: rate
2	123	7.6	[108, 139]	75	5.7	[63, 86]
3	145	7.5	[129, 160]	74	5.6	[63, 85]
4	158	7.5	[143, 173]	69	5.5	[58, 80]
5	163	7.5	[148, 179]	73	5.5	[62, 84]
6	176	7.4	[161, 191]	75	5.5	[64, 86]
7	183	7.5	[168, 199]	85	5.5	[74, 96]
Moderate–severe: rate
2	112	9.0	[93, 130]	67	6.7	[54, 81]
3	126	9.0	[108, 144]	61	6.5	[48, 74]
4	130	8.9	[112, 149]	62	6.5	[48, 75]
5	139	9.0	[121, 158]	65	6.6	[51, 78]
6	155	9.0	[136, 173]	61	6.7	[47, 74]
7	164	9.1	[146, 183]	69	7.0	[55, 83]
Mild: intelligibility
2	97%	1.2	[94, 99]	97%	1.2	[93, 99]
3	98%	0.8	[96, 99]	97%	1.1	[94, 99]
4	97%	1.0	[95, 99]	97%	1.1	[94, 99]
5	97%	1.1	[94, 98]	98%	0.9	[95, 99]
6	96%	1.3	[92, 98]	98%	0.9	[95, 99]
7	98%	0.8	[96, 99]	98%	0.7	[96, 99]
Moderate–severe: intelligibility
2	55%	11.0	[34, 75]	62%	10.3	[41, 80]
3	56%	10.6	[35, 75]	65%	9.6	[44, 81]
4	54%	10.4	[34, 73]	73%	8.1	[55, 86]
5	38%	9.9	[21, 58]	69%	8.8	[50, 84]
6	40%	10.1	[23, 61]	63%	9.7	[43, 79]
7	45%	10.5	[27, 66]	71%	8.8	[51, 85]

Note. CI = confidence interval.