Table A15.

Results from stepwise regression models for eyes open delta activity at electrode Cz.

		Unstandardized Coefficients		Standardized Coefficients
Step	Predictor	B	SE	β	p	R 2	ΔR2	F	p
1	Age	−0.065	0.010	−0.415	<0.0001	0.172	0.172	45.34	<0.0001
2	Age Inattention Hyp/imp	−0.066 0.028 −0.061	0.010 0.098 0.099	−0.418 0.022 −0.046	<0.0001 0.774 0.538	0.174	0.001	15.13	<0.0001
3	Age Inattention Hyp/imp Data quality (artifact-free segments in %)	−0.061 0.003 −0.112 −0.010	0.010 0.095 0.097 0.003	−0.387 0.002 −0.084 −0.251	<0.0001 0.976 0.249 < 0.0001	0.233	0.059	16.34	<0.0001

N = 219. Hyp/imp = Hyperactivity/impulsivity. SE = standard error of B.