Variable

Unmatched

Matched

Mean

% bias

% reduct

t-test

V (T)/V (C)

Treated

Control

|bias|

t

p > |t|

年龄

U

82.821

86.538

−32.100

−10.100

0.000

0.93^*

M

82.908

85.927

−26.000

18.800

−13.750

0.000

0.950

性别

U

0.454

0.359

19.400

5.960

0.000

.

M

0.451

0.377

15.200

21.700

7.900

0.000

.

受教育程度

U

2.547

1.868

22.400

6.700

0.000

1.29^*

M

2.518

1.949

18.800

16.100

9.820

0.000

1.25^*

性格

U

0.791

0.712

18.300

5.900

0.000

.

M

0.790

0.741

11.400

37.800

6.060

0.000

.

婚姻

U

0.494

0.352

29.000

8.900

0.000

.

M

0.491

0.370

24.800

14.400

12.930

0.000

.

家庭收入对数

U

9.770

9.582

12.400

3.890

0.000

0.950

M

9.763

9.638

8.200

33.600

4.360

0.000

1.000

子女数量

U

4.030

4.568

−28.000

−8.970

0.000

0.84^*

M

4.044

4.418

−19.500

30.400

−10.520

0.000

0.93^*

家庭地位

U

0.851

0.817

9.100

2.910

0.004

.

M

0.850

0.829

5.600

38.700

2.960

0.003

.