Table 4.

Stepwise Regression Analyses for DMT Commission Errors and P50, N100, and P200 Amplitude for S2

	Contribution				Model
Predictorsa	B	tvalue	p value	rpart	$R_{\text{adjusted}}^2$	F value	p value
Model 1
1P200 S2 amplitude	−28.94	−2.64	.011	−.34	.10	6.99	.011
2P200 S2 amplitude	−27.06	−2.52	.015	−.32	.14	5.47	.007
N100 S2 amplitude	20.91	1.90	.063	.24
3P200 S2 amplitude	−22.12	−1.91	.062	−.24	.14	4.09	.011
P50 S2 amplitude	20.62	1.88	.066	.23
N100 S2 amplitude	−14.42	−1.12	.267	−.14
Model 2
1P50 S2 amplitude	23.47	2.04	.046	.27	.06	4.17	.046
2P50 S2 amplitude	22.22	1.98	.053	.25	.10	4.10	.022
N100 S2 amplitudea	−23.76	−1.95	.056	−.25
3P50 S2 amplitude	20.62	1.88	.066	.23	.14	4.09	.011
N100 S2 amplitude	−14.42	−1.12	.267	−.14
P200 S2 amplitude	−22.12	−1.91	.062	−.24

^aData were transformed prior to statistical analysis.