Table 2.

Children’s performance on nonverbal EF measures in Year 1 and 2

		Monolinguals		Bilinguals		Monolinguals		Bilinguals
		Year 1				Year 2
		Mean	SD	Mean	SD	Mean	SD	Mean	SD
Inhibition (Flanker)
	Neutral ACC	0.95	0.06	0.96	0.08	0.97	0.05	0.97	0.06
	Neutral RT	584.39	91.34	591.54	129.62	553.08	99.67	550.33	113.91
	Incongruent ACC	0.93	0.10	0.93	0.11	0.94	0.09	0.95	0.07
	Incongruent RT	621.16	99.50	659.24	149.35	605.66	109.58	581.14	117.87
Updating (Corsi Blocks)
	Maximum Capacity	4.63	0.88	4.71	1.02	4.90	0.93	5.08	1.38
Task-Shifting (DCCS)
Shifting costs	PreShift ACC	0.97	0.09	0.94	0.13	0.98	0.08	0.97	0.08
	PreShift RT	553.83	105.98	565.03	138.60	511.05	89.29	546.02	109.84
	PostShift RT	0.90	0.17	0.89	0.15	0.91	0.13	0.94	0.11
	PostShift RT	840.49	328.15	791.56	241.15	677.94	200.31	682.77	203.59
Switching costs	MixedNonSwitch ACC	0.89	0.11	0.89	0.12	0.94	0.07	0.92	0.07
	MixedNonSwitch RT	1150.94	313.94	1003.18	225.45	984.49	276.64	880.41	233.57
	MixedSwitch ACC	0.74	0.14	0.70	0.18	0.80	0.14	0.74	0.16
	MixedSwitch RT	1366.32	371.73	1179.57	324.88	1151.17	367.89	1051.17	269.46
Mixing costs	PreShift ACC	0.97	0.09	0.94	0.13	0.98	0.08	0.97	0.08
	PreShift RT	553.83	105.98	565.03	138.60	511.05	89.29	546.02	109.84
	MixedNonSwitch ACC	0.89	0.11	0.89	0.12	0.94	0.07	0.92	0.07
	MixedNonSwitch RT	1150.94	313.94	1003.18	225.45	984.49	276.64	880.41	233.57