Table A24.

Results from stepwise regression models for eyes closed theta activity at electrode Cz.

		Unstandardized Coefficients		Standardized Coefficients
Step	Predictor	B	SE	β	p	R 2	ΔR2	F	p
1	Age	−0.018	0.002	−0.472	<0.0001	0.223	0.223	59.48	<0.0001
2	Age Inattention Hyp/imp	−0.018 −0.008 0.011	0.002 0.023 0.024	−0.469 −0.027 0.035	<0.0001 0.718 0.640	0.224	0.001	19.74	<0.0001
3	Age Inattention Hyp/imp Data quality (artifact-free segments in %)	−0.016 −0.011 −0.007 −0.002	0.002 0.022 0.024 0.001	−0.403 −0.036 −0.021 −0.238	<0.0001 0.618 0.772 <0.0001	0.273	0.049	19.15	<0.0001

N = 208. Hyp/imp = Hyperactivity/impulsivity. SE = standard error of B.