Table 3.

Multiple Regression: EEG Predictors of Outcome Variables

	tβ (regression coefficient)					Model Fit
	Alphae	Alpham⊥e	Theta	P2	Age	R2adj	F
Symptom Factora	−2.1*	0.5	0.3	0.6	−0.4	.01	1.1
Executive Function Factor	−2.1*	3.0**	0.2	0.6	1.2	.13	3.4**
Basic Reading Factor	0.6	1.7	−0.3	−1.0	−0.5	.01	.53
Reading Comprehension/Math Factor	−2.1*	1.1	−0.5	0.6	−1.1	.01	.34
Task Accuracy	−2.6**	0.1	1.3	0.6	4.3***	.30	9.5***
Task Reaction Time	0.6	−0.3	−0.6	0.1	−7.9***	.44	16.9***
Task Reaction Time SD	0.9	−0.1	−0.03	1.0	−4.5***	.19	5.7***
Internal Consistency (αCronbach’s)b	.85/.80	.82/.84	.43/.33	.24/.35

Notes.

^†p<.1,

^*p<.05,

^**p<.01,

^***p<.001.

SD=standard deviation.

^aHigher score indicates fewer attention problems, thus greater alpha decrease during encoding, is associated with fewer ADHD symptoms).

^bCronbach’s alpha for each measure calculated on comparison of odd-numbered trials with even-numbered trials within each participant and is reported for low-load/high-load conditions.