Table 1. Performance data comparing in-group and out-group faces.

	In-group faces		Out-group faces
	M	SD	M	SD	Cohen’s d
P(A)	0.80	0.08	0.78	0.08	0.14
c	0.03	0.42	0.02	0.42	0.02
Hit minus false alarm “recollect”	0.26	0.17	0.25	0.16	0.06
Hit “recollect”	0.28	0.18	0.28	0.18	0.00
False alarm “recollect”	0.02	0.05	0.03	0.04	0.02
Hit minus false alarm IRK “familiar”	0.36	0.16	0.35	0.16	0.06
Hit IRK “familiar“	0.61	0.18	0.61	0.18	0.00
False alarm IRK “familiar”	0.25	0.14	0.26	0.15	0.07

Effect size is given as Cohen’s d.