Table 3.

Effects of ADHD and RD on Neuropsychological Performance Covaried for Age

	ADHD		RD		Interaction
Measure	F(1, 115)	ηp²	F(1, 115)	ηp²	F(1, 115)	ηp²
Stop signal paradigm
SSRT	3.87ª	0.03	6.44**	0.05	0.18	0.002
MRT	0.06	0.001	17.52**	0.13	3.20	0.02
Omission Errors	9.54**	0.07	16.71**	0.12	0.81	0.007
Commission Errors	8.62**	0.07	0.86	0.007	0.24	0.002
Corsi block tapping test
WM Maximum Span	7.07**	0.05	0.23	0.002	8.99**	0.07
Lexical decisionb
d′	8.74**	0.07	19.85**	0.15	0.12	0.001
MRT Valid Words	4.68*	0.04	29.70**	0.21	2.37	0.02
MRT Pseudowords	4.07*	0.03	44.19**	0.28	4.35*	0.03

ADHD Attention deficit hyperactivity disorder; MRT Mean reaction time; SSRT Stop signal reaction time; RD Reading disorder; WM Working memory

ªp = 0.052

^bThree children were missing

*significant at p < 0.05, **significant at p < 0.01