. 2018 Oct 10;13(10):e0202634. doi: 10.1371/journal.pone.0202634

Table 9.

		Unstandardized Coefficients		Standardized Coefficients	t	Sig.	95% CI for B
		Unstandardized Coefficients		Standardized Coefficients			Lower Bound	Upper Bound
Model		B	Std. Error	Beta			Lower Bound	Upper Bound
1	(Constant)	1·537	0·049		10·959	<0·001	1·440	1·633
	TVO	0·562	0·210	0·052	2·671	0·008	0·149	0·974
2	(Constant)	1·536	0·099		5·414	<0·001	1·343	1·730
	TVO	1·067	0·244	0·098	4·371	<0·001	0·588	1·546
	Side	0·079	0·053	0·029	1·505	0·132	-0·024	0·183
	%SS	-2·141	0·561	-0·129	-3·813	<0·001	-3·242	-1·040
	%SS-TVO Interaction	-9·291	2·329	-0·141	-3·990	<0·001	-13·858	-4·725

Hierarchical multiple regression for Experiment 3 using Percentage of Stuttered Syllables. B = unstandardized coefficient. TPO = Time before Prefix Onset. Side = Side of tongue recording. %SS = Percentage of Stuttered Syllables. %SS was a continuous variable including all previously included data from both groups. The constant of the regression was tested against an H0 of B = 1, instead of the normal B = 0.