Table 2. Group means (standard deviations between brackets) of WM-capacity K in T1D0, T1D2 and T3D0 conditions of the VSWM change detection task for adolescents and adults in the control and ADHD groups.

	WM-capacity K (visuospatial)
	T1D0	T1D2	T3D0
Control Adolescents	.81 (.15)*	.67 (.17)**	1.82 (.48)**
	Range:.42–.98	Range:.33–.93	Range:.78–2.50
ADHD Adolescents	.78 (.17)*	.64 (.20)**	1.61 (.49)**
	Range:.49–.97	Range:.31–.93	Range:.73–2.30
Control Adults	.89 (.14)*	.82 (.16)**	2.15 (.50)**
	Range:.43–.99	Range:.39–.98	Range: 1.20–2.83
ADHD Adults	.89 (.13)*	.82 (.18)**	2.09 (.50)**
	Range:.51–1.0	Range:.22–.98	Range:.95–2.80

NB: stars indicate significant Age differences (P values):

^* P<.01;

^** P<.001.