Table 4.

Pe effect sizes

	Study Name	n Case: n Ctrl	g (SE)	95% CI	Weighted ES
Psychosis vs. Ctrl†	Bates et al., 2004	9: 9	0.08 (0.47)	−0.85, 1.00	0.37
	Chan et al., 2015b	14: 12	−0.75 (0.41)	−1.55, 0.04	−4.55
	Foti et al., 2012	78: 33	−0.32 (0.21)	−0.73, 0.09	−7.43
	Horan et al., 2012	16: 14	0.42 (0.37)	−0.30, 1.14	3.10
	Kim et al., 2006	15: 15	0.62 (0.37)	−0.11, 1.34	4.46
	Llerena et al., 2016	93: 63	−0.07 (0.47)	−0.39, 0.32	−2.67
	Mathalon et al., 2002	18: 18	0.03 (0.33)	−0.62, 0.69	0.30
	Minzenberg et al., 2014	99: 54	0.15 (0.17)	−0.18, 0.49	5.36
	Morris et al., 2006	16: 11	0.36 (0.39)	−0.41, 1.13	2.31
	Simmonite et al., 2012	29: 35	−0.40 (0.25)	−0.89, 0.09	−6.37
	Total	387: 264	−0.03 (0.08)	−0.19, 0.13
At-risk vs. Ctrl	Chan et al., 2015a	22: 20	−0.34 (0.31)	−0.95, 0.26	−3.57
	Kim et al., 2015	17: 20	−0.27 (0.33)	−0.92, 0.38	−2.45
	Laurens et al., 2010	22: 26	0.62 (0.29)	0.05, 1.20	7.20
	Perez et al., 2012	48: 88	−0.14 (0.18)	−0.49, 0.22	−4.24
	Rabella et al., 2016	9: 12	−0.34 (0.44)	−1.21, 0.53	−1.72
	Simmonite et al., 2012	36: 35	−0.33 (0.24)	−0.79, 0.14	−5.76
	Zou et al., 2014	15: 15	0.77 (0.37)	0.03, 1.50	5.45
	Total	169: 216	−0.06 (0.10)	−0.26, 0.15

Note: CI, confidence interval; Ctrl, healthy control subject sample; ES, effect size; SE, standard error.