Table 3.

ERN effect sizes.

	Study Name	n Case: n Ctrl	g (SE)	95% CI	Weighted ES
Psychosis vs. Ctrl	Araki et al., 2013	18: 18	−1.14 (0.35)	−1.83, −0.45	−9.23
	Bates et al., 2002	21: 21	−1.01 (0.33)	−1.65, −0.36	−9.37
	Bates et al., 2004	9: 9	−2.32 (0.62)	−3.54, −1.10	−6.02
	Chan et al., 2015b	14: 12	−1.02 (0.42)	−1.84, −0.20	−5.85
	de la Asuncion et al., 2015	22: 21	−0.83 (0.31)	−1.44, −0.21	−8.44
	Ford et al., 2009	11: 10	−0.97 (0.46)	−1.87, −0.07	−4.60
	Foti et al., 2012	78: 33	−1.41 (0.22)	−1.83, −0.98	−30.01
	Horan et al., 2012	16: 14	−0.47 (0.37)	−1.20, 0.25	−3.45
	Houthoofd et al., 2013	12: 12	−1.58 (0.46)	−2.48, −0.67	−7.45
	Kansal et al., 2014	18: 18	−0.91 (0.34)	−1.58, −0.23	−7.63
	Kim et al., 2006	15: 15	−1.83 (0.42)	−2.66, −1.01	−10.34
	Llerena et al., 2016	82: 48	−1.09 (0.19)	−1.46, −0.73	−31.51
	Mathalon et al., 2002	18: 18	−0.85 (0.34)	−1.53, −0.18	−7.23
	Minzenberg et al., 2014	99: 54	−0.68 (0.17)	−1.01, −0.35	−23.34
	Morris et al., 2006	16: 11	−0.66 (0.40)	−1.44, 0.12	−4.12
	Morris et al., 2008	26: 27	−0.13 (0.27)	−0.66, 0.41	−1.69
	Morris et al., 2011	20: 15	−0.86 (0.35)	−1.55, −0.17	−6.92
	Reinhart et al., 2015	17: 18	−0.75 (0.35)	−1.43, −0.07	−6.26
	Simmonite et al., 2012	29: 35	−1.22 (0.26)	−1.74, −0.71	−17.69
	Total	541:409	−0.96(0.07)	−1.09, −0.82
At-risk vs. Ctrl	Chan et al., 2015a	22: 20	0.08 (0.31)	−0.53, 0.68	0.80
	Kim et al., 2015	17: 20	−1.03 (0.34)	−1.70, −0.35	−8.67
	Laurens et al., 2010	22: 26	−0.84 (0.30)	−1.42, −0.25	−9.49
	Perez et al., 2012	48: 88	−0.28 (0.18)	−0.63, 0.07	−8.61
	Rabella et al., 2016	9: 12	−1.00 (0.46)	−1.91, −0.09	−4.62
	Simmonite et al., 2012	36: 35	−0.65 (0.24)	−1.12, −0.18	−11.26
	Zou et al., 2014	15: 15	−0.26 (0.37)	−0.98, 0.46	−1.92
	Total	169: 216	−0.48 (0.11)	−0.69, −.28

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