Table 3.

Summary of mean effect size for the association between FTD and social functioning.

	k	ES—r	95% CI	z	p	Q	p	I 2
FTD—social functioning	13	–0.23	[–0.33, –0.12]	–3.92	<0.001	52.77	<0.001	77.26

Abbreviations: 95% CI, 95% confidence interval for the mean effect size; ES, sample weighted averaged observed correlation; FTD, formal thought disorder; I ², the extent of between-study variability; k, number of studies used in the calculation of the mean effect size; Q, test for presence of heterogeneity; Z, z-test for statistical significance of the mean effect size.