Feature

Pointing to the problem

Problem solving

Seeking social support

Reasonable positive interpretation

Sex

boy

50.53 ± 7.39

18.82 ± 3.52

18.32 ± 3.55

13.39 ± 2.43

girl

51.79 ± 8.67

18.61 ± 3.68

19.16 ± 3.78

14.02 ± 2.78

t

1.232

0.476

1.809

1.933

P

>0.05

>0.05

>0.05

>0.05

Nationality

Han

48.96 ± 8.44

18.09 ± 3.65

18.02 ± 3.95

12.86 ± 2.61

Hui

52.50 ± 7.65

18.94 ± 3.64

19.37 ± 3.72

14.19 ± 2.60

Tibetan

52.53 ± 7.20

19.50 ± 3.43

19.03 ± 3.27

14.00 ± 2.58

Tu

50.80 ± 8.29

18.48 ± 3.59

18.58 ± 3.71

13.74 ± 2.58

F

2.572

1.712

1.411

2.898

P

>0.05

>0.05

>0.05

<0.05

Grade

seventh

49.23 ± 8.16

17.86 ± 3.58

18.39 ± 3.67

12.98 ± 2.47

eighth

53.57 ± 7.24a

19.52 ± 3.21a

19.86 ± 3.50a

14.19 ± 2.42a

ninth

50.88 ± 8.10b

18.92 ± 3.80

17.92 ± 3.63b

14.04 ± 2.82a

F

6.673

4.943

6.362

5.788

P

<0.01

<0.01

<0.01

<0.01

Age

≤13 year

50.25 ± 8.49

18.08 ± 3.85

18.58 ± 3.40

13.58 ± 2.79

14 year~

52.46 ± 9.21

18.86 ± 3.84

19.89 ± 4.09

13.71 ± 2.74

15 year~

50.37 ± 7.86

18.63 ± 3.42

18.54 ± 3.64

13.20 ± 2.74

16 year~

51.60 ± 6.52

18.99 ± 3.23

18.35 ± 3.36

14.27 ± 2.39

17 year~

49.45 ± 10.52

18.15 ± 4.78

17.85 ± 3.92

13.45 ± 3.15

18 year~

49.50 ± 7.40

18.17 ± 3.97

18.33 ± 3.01

13.00 ± 3.03

F

0.752

14.570

32.207

20.570

P

>0.05

>0.05

>0.05

>0.05

Origin of student

City

46.00 ± 7.13

16.83 ± 2.48

17.00 ± 3.58

12.17 ± 2.23

Rural

51.26 ± 8.02

18.77 ± 3.60

18.76 ± 3.68

13.73 ± 2.62

t

1.781

1.305

1.160

1.450

P

>0.05

>0.05

>0.05

>0.05