Table 3.

Regression models assessing initial intelligibility and intelligibility improvement.

Initial intelligibility
Clinical characteristic	F statistic	p value	R 2
Years SLP	0.61	.439	.01
Current setting	9.46	< .001	.30
Percent caseload	6.66	< .001	.32
Perceived competence	9.88	.003	.18
Intelligibility improvement
Clinical characteristic	F statistic	p value	R 2	R 2 without initial intelligibility
Years SLP	0.06	.813	.45	.01
Current setting	0.22	.806	.46	.10
Percent caseload	1.99	.130	.52	.04
Perceived competence	7.13	.011	.53	.01

Note. All models with intelligibility improvement as the dependent variable control for initial intelligibility (pretest percent words correct). SLP = speech-language pathologist.