Table 2.

Hierarchical multiple regression: P300 amplitude for faster (quartile 2) responses regressed on P300 amplitudes for slower (quartile 4) responses, adjusting for executive function (Model 2).

Executive function variable	CP3 fast ∆R2	CP4 fast ∆R2	CPz fast ∆R2
Model 1
Nonea	0.30*	0.28*	0.41**
Model 2
FASb	0.15	0.12	0.24*
Foodb	0.28*	0.28*	0.39**
Switchb	0.31*	0.20	0.41**
Stroopb	0.22*	0.36*	0.25*
SARTb	0.34**	0.29*	0.44**
Compb	0.19*	0.17	0.28*

All models adjusted for IQ;

Comp = composite measure of executive function, SART = Sustained Attention to Response Task;

a = df = 1,14; b = df = 1,12;

*p < 0.05, **p < 0.01.