Table 3.

Non-parametric Wilcoxon results for latency (A) and number of errors (B).

	TD children			Children with ADHD
Latency (ms)	T	Z	P-level	T	Z	P-level	Bonferroni post-hoc	Effect size
(A)
Endogenous—valid vs. exogenous valid	859	1,032	394	−1.02	0.31	−0.13
Endogenous—neutral vs. exogenous neutral	875	954	440	−0.13	0.89	−0.01
Endogenous—invalid vs. exogenous invalid	715	1,176	250	−3.10	0.001	−0.39	0.003	0.57
Errors	T	Z	P-level	T	Z	P-level	Bonferroni post-hoc	Effect size
(B)
Endogenous—valid vs. exogenous valid	44	0.9	0.36	128	0.30	0.76
Endogenous—neutral vs. exogenous neutral	10.50	1.05	0.29	110	0.17	0.86
Endogenous—invalid vs. exogenous invalid	57.50	1.21	0.22	114	1.29	0.19