Table 2.

Effect size outcomes for combined social skills measures

			95% confidence interval
	NObs	g	Lower	Upper	Z	Test of homogeneity
Social skills outcomes
Overall effect	19	0.83	0.60	1.07	6.99**	χ2 (18) = 59.14**
Subgroup: treatment type
BITs interventions	5	0.93	0.57	1.29	5.05**	χ2 (4) = 4.32**
Face-to-face interventions	14	0.81	0.53	1.08	5.82**	χ 2 (13) = 51.17**
	Subgroup effect: χ2 (1) = 0.28, p = 0.59 (ns)

**p < .01; g: Hedges’ g