Table A13.

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

		Unstandardized Coefficients		Standardized Coefficients
Step	Predictor	B	SE	β	p	R 2	ΔR2	F	p
1	Age	−0.017	0.003	−0.325	<0.0001	0.106	0.106	25.93	<0.0001
2	Age Inattention Hyp/imp	−0.017 0.023 0.033	0.003 0.033 0.033	−0.331 0.054 0.075	<0.0001 0.487 0.327	0.119	0.013	9.75	<0.0001
3	Age Inattention Hyp/imp Data quality (artifact-free segments in %)	−0.016 0.018 0.024 −0.002	0.003 0.033 0.033 0.001	−0.314 0.043 0.056 −0.130	<0.0001 0.574 0.464 0.047	0.135	0.016	8.42	<0.0001

N = 220. Hyp/imp = Hyperactivity/impulsivity. SE = standard error of B.