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

82.897

83.364

−4.000

87.500

−2.130

0.033

0.970

性别

U

0.454

0.359

19.400

5.960

0.000

.

M

0.451

0.442

1.800

90.500

0.950

0.345

.

受教育程度

U

2.547

1.868

22.400

6.700

0.000

1.29^*

M

2.528

2.395

4.400

80.500

2.210

0.027

1.09^*

性格

U

0.791

0.712

18.300

5.900

0.000

.

M

0.790

0.776

3.200

82.300

1.770

0.076

.

婚姻

U

0.494

0.352

29.000

8.900

0.000

.

M

0.492

0.471

4.300

85.100

2.220

0.027

.

家庭收入对数

U

9.770

9.582

12.400

3.890

0.000

0.950

M

9.764

9.709

3.700

70.400

1.960

0.050

1.040

子女数量

U

4.030

4.568

−28.000

−8.970

0.000

0.84^*

M

4.043

4.124

−4.200

84.900

−2.320

0.021

0.990

家庭地位

U

0.851

0.817

9.100

2.910

0.004

.

M

0.850

0.850

−0.100

99.200

−0.040

0.967

.