Table 4.

Subgroup analyses of global cognitive functioning with categorical variables for type of control group, diagnostic status of the sample and novelty of VR technology (mixed-effects model)

Moderator	k	g	p	I2	95% CI	Qb	p
Active controls/passive controls	5	0.95	0.003	75.91	[0.33, 1.58]	0.28	0.60
	4	1.30	0.03	85.25	[0.17, 2.44]
Formal ADHD diagnosis/ADHD-like symptoms without a formal ADHD diagnosis	4	1.09	< 0.001	67.00	[0.57, 1.61]	0.02	0.90
	3	1.00	0.10	82.92	[− 0.17, 2.18]
Newest VR technology/older VR technology	3	0.89	< 0.001	49.27	[0.42, 1.35]	0.39	0.53
	4	1.21	0.008	80.09	[0.31, 2.11]

k number of studies, g Hedge’s g, I² Heterogeneity within study, Q_b Heterogeneity between studies