U(Unmatched)	Mean		% Bias Reduction		t-test
	M (Matched)	Treated	Control	%bias	|bias|	t	p>|t|
TANF	U	0.20588	0.39558	−42.2		−5.68	0
	M	0.21304	0.24783	−7.7	81.7	−0.88	0.377
SNAP	U	0.42017	0.59371	−35.2		−5.06	0
	M	0.43478	0.44348	−1.8	95	−0.19	0.851
Mother’s city of residence	U	8.0336	8.6165	−11.8		−1.65	0.098
	M	8.113	8.5087	−8	32.1	−0.88	0.382
Mother has good knowledge of the CS system	U	0.33613	0.53681	−41.3		−5.8	0
	M	0.34348	0.41304	−14.3	65.3	−1.54	0.125
Mother thinks financial support from father important	U	0.7395	0.84337	−25.7		−3.97	0
	M	0.75652	0.78261	−6.5	74.9	−0.66	0.508
# of economic hardships mother experienced	U	0.98319	1.3072	−19.6		−2.76	0.006
	M	0.9913	1.1348	−8.7	55.7	−0.98	0.329
Mother had income from earning last year	U	0.55882	0.73159	−36.7		−5.49	0
	M	0.57391	0.61304	−8.3	77.4	−0.85	0.394
Mother has children with other men	U	0.34454	0.40629	−12.8		−1.81	0.071
	M	0.33913	0.34783	−1.8	85.9	−0.2	0.845
Mother is older than 30 years old	U	0.21849	0.13855	21		3.22	0.001
	M	0.20435	0.2087	−1.1	94.6	−0.11	0.909
Mother has more than high school education	U	0.37815	0.58969	−43.3		−6.17	0
	M	0.3913	0.43913	−9.8	77.4	−1.04	0.299
Mother is Hispanic	U	0.76471	0.21687	130.8		18.96	0
	M	0.75652	0.75652	0	100	0	1
Mother is Black	U	0.14706	0.58568	−102.1		−13.2	0
	M	0.15217	0.15652	−1	99	−0.13	0.898
Mother is of other race	U	0.04622	0.02075	14.2		2.37	0.018
	M	0.04783	0.03913	4.8	65.9	0.46	0.648
Father ever in jail	U	0.01261	0.03882	−16.6		−2.04	0.042
	M	0.01304	0.0087	2.8	83.4	0.45	0.654
Father worked when child was 1 year old	U	0.83613	0.7095	30.5		4.09	0
	M	0.83043	0.8087	5.2	82.8	0.61	0.545
Father has children with other women	U	0.30252	0.40361	−21.2		−2.98	0.003
	M	0.3087	0.3087	0	100	0	1
Father and mother in steady relationship	U	0.85294	0.80321	13.2		1.82	0.069
	M	0.85652	0.86957	−3.5	73.8	−0.41	0.685

Source: Fragile Families and Child Wellbeing Survey, the Baseline, Age 1 and Age 3 Data.