Table 1.

Participant characteristics (CA refers to chronological age in years; months).

Child ID	CA	Gender	Language Status	Language spoken	Mother's Level of Education	Percent Input		Percent Output		Proficiency
						Spanish	English	Spanish	English	Spanish	English
B01	3;8	male	sequential	Spanish/English	high school	63	37	63	37	4	3
B02	3;5	male	simultaneous	Spanish/English	high school	75	25	75	25	4	3
B03	3;8	male	sequential	Spanish/English	some university	58	42	30	70	3	3
B04	3;5	male	simultaneous	Spanish/English	Bachelors degree	50	50	20	80	3	4
B05	3;8	female	simultaneous	Spanish/English	high school	40	60	20	80	3	4
B06	3;4	male	simultaneous	Spanish/English	some university	70	30	20	80	3	4
B07	3;11	male	sequential	Spanish/English	high school	40	60	20	80	3	4
B08	3;5	male	simultaneous	Spanish/English	some university	80	20	50	50	3	3
S01	4;0	male	monolingual	Spanish	some high school	100	0	100	0	4	0
S02	3;3	male	monolingual	Spanish	Masters degree	100	0	100	0	4	0
S03	3;3	male	monolingual	Spanish	high school	100	0	100	0	4	0
S04	3;10	male	monolingual	Spanish	some high school	100	0	100	0	4	0
S05	3;2	female	monolingual	Spanish	Bachelors degree	100	0	100	0	4	0
S06	3;6	female	monolingual	Spanish	Masters degree	100	0	100	0	4	0
S07	3;4	female	monolingual	Spanish	some high school	100	0	100	0	4	0
S08	3;4	male	monolingual	Spanish	some high school	100	0	100	0	4	0
E01	3;3	female	monolingual	English	Masters degree	0	100	0	100	0	4
E02	3;1	female	monolingual	English	Medical degree	0	100	0	100	0	4
E03	3;11	female	monolingual	English	Masters Degree	0	100	0	100	0	4
E04	3;8	male	monolingual	English	high school	0	100	0	100	0	4
E05	3;0	male	monolingual	English	Bachelors degree	0	100	0	100	0	4
E06	3;0	male	monolingual	English	Bachelors degree	0	100	0	100	0	4
E07	3;1	male	monolingual	English	Bachelors degree	0	100	0	100	0	4
E08	3;7	male	monolingual	English	Masters Degree	0	100	0	100	0	4