Item

Category

Number (n)

x ¯ ± S

t/U

P

Gender

male

16

31.1250 ± 12.05271

−1.0140

>0.05

female

252

34.1587 ± 7.93212

Student source

City

56

35.3214 ± 9.37709

1.2447

>0.05

countryside

212

33.6226 ± 7.87576

One-child

Yes

104

34.8077 ± 9.20579

1.2601

>0.05

No

164

33.4512 ± 7.51156

Single-parent family

Yes

40

31.2000 ± 9.07048

−2.1359

<0.05

NO

228

34.4649 ± 7.98581

Probation

Yes

224

37.6818 ± 8.75261

3.3299

<0.05

No

44

33.2500 ± 7.93044