Table A14.

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

		Unstandardized Coefficients		Standardized Coefficients
Step	Predictor	B	SE	β	p	R 2	ΔR2	F	p
1	Age	−0.061	0.009	−0.415	<0.0001	0.172	0.172	44.98	<0.0001
2	Age Inattention Hyp/imp	−0.061 0.021 0.104	0.009 0.092 0.093	−0.416 0.017 0.083	<0.0001 0.820 0.266	0.181	0.009	15.78	<0.0001
3	Age Inattention Hyp/imp Data quality (artifact-free segments in %)	−0.057 0.005 0.053 −0.009	0.009 0.089 0.091 0.002	−0.389 0.004 0.042 −0.233	<0.0001 0.954 0.565 < 0.0001	0.233	0.051	16.13	<0.0001

N = 217. Hyp/imp = Hyperactivity/impulsivity. SE = standard error of B.