Table 4.

Random effects model including outliers.

g	n	s	o	SE	95 % CI	p-value	τ
0.238	69	90	205	0.042	[0.157, 0.320]	< 0.001	0.439

g, standardized mean difference Hedges' g; SE, standard error; CI, confidence interval at 95% level of significance; τ, tau (estimate of the total standard deviation of the true effect size Hedges' g).