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. 2023 Oct 30;9(11):e21443. doi: 10.1016/j.heliyon.2023.e21443

Table 4.

Check for the pre- and post-matching balancing.

Income inequality									Educational inequality
	Unmatched	Mean		%reduct		t-test		V(T)/V(C)		Unmatched	Mean		%reduct		t-test		V(T)/V(C)
Variable	Matched	Treated	Control	%bias	Bias	t	p > t	V(T)/V(C)	Variable	Matched	Treated	Control	%bias	bias	t	p > t	V(T)/V(C)
_pscore	U	.53,903	.26,178	133.3		28.86	0.000	0.66*	_pscore	U	.5859	.3226	125.4		23.84	0.000	0.40*
	M	.53,847	.53,845	0.0	100.0	0.00	0.998	1.00		M	.5859	.58,587	0.0	100.0	0.00	0.998	1.00
Balancing indexes									Balancing indexes
Sample	Ps R2	LR chi2	p > chi2	MeanBias	MedBias	B	R	%Var	Sample	Ps R2	LR chi2	p > chi2	MeanBias	MedBias	B	R	%Var
Unmatched	0.235	656.36	0.000	133.3	133.3	133.3*	0.66	100	Unmatched	0.224	471.60	0.000	125.4	125.4	125.4*	0.40*	100
Matched	0.000	0.00	0.998	0.0	0.0	0.0	1.00	0	Matched	0.000	0.00	0.998	0.0	0.0	0.0	1.00	0