Table A25.

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

		Unstandardized Coefficients		Standardized Coefficients
Step	Predictor	B	SE	β	p	R 2	ΔR2	F	p
1	Age	−0.027	0.005	−0.383	<0.0001	0.147	0.147	35.67	<0.0001
2	Age Inattention Hyp/imp	−0.027 −0.014 0.049	0.005 0.044 0.045	−0.380 −0.024 0.084	<0.0001 0.757 0.279	0.152	0.005	12.28	<0.0001
3	Age Inattention Hyp/imp Data quality (artifact-free segments in %)	−0.023 −0.018 0.020 −0.004	0.005 0.043 0.045 0.001	−0.321 −0.032 0.034 −0.213	<0.0001 0.671 0.661 0.002	0.191	0.039	12.07	<0.0001

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