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Table 1 Values in valid sample, interclass correlation, and reliability for each question item (n = 6245)

From: Factors influencing junior high school students’ perceptions of attending school in Japan

Item wording

Valid sample

ICC

n

%

 

95% CI Lower

95% CI Upper

1. Looking forward to going to my school

6164

98.70

0.019**

0.008

0.067

2. Getting along well with friends of the same gender

6200

99.28

0.001

0.000

0.008

3. Getting along well with friends of the opposite gender

6192

99.15

0.010**

0.004

0.040

4. Being liked by other students

6174

98.86

0.017**

0.007

0.063

5. School teachers approve of my efforts

6182

98.99

0.009**

0.003

0.035

6. Being happy when talking to school teachers

6188

99.09

0.013**

0.005

0.047

7. Believing one’s efforts will be rewarded

6232

99.79

0.005**

0.001

0.022

8. Being proud of oneself

6228

99.73

0.006**

0.002

0.023

9. Being helpful to others

6207

99.39

0.011**

0.004

0.043

10. Being secured and comfortable when staying at home

6227

99.71

0.002

0.000

0.011

11. Being loved by one’s family

6212

99.47

0.003*

0.001

0.016

12. Having anxieties/worries

6223

99.65

0.024**

0.010

0.083

13. Being lonely

6211

99.46

0.010**

0.004

0.038

14. Being irritated easily compared with classmates

6188

99.09

0.005**

0.001

0.020

15. Being pessimistic compared with classmates

6184

99.02

0.002

0.000

0.010

16. Falling asleep during the daytime

6211

99.46

0.003*

0.001

0.015

17. Getting tired easily

6208

99.41

0.005**

0.001

0.020

18. Having no appetite

6207

99.39

0.004**

0.001

0.019

Persons I talk to when sharing my experiences and thoughts with

 a. Mother

6179

98.94

0.015**

0.006

0.055

 b. Father

6136

98.25

0.006**

0.002

0.023

 c. Siblings

6142

98.35

0.007**

0.002

0.029

 d. Other family members/relatives

6172

98.83

0.013**

0.005

0.047

 e. School teachers

6187

99.07

0.019**

0.008

0.069

 f. Instructors of extracurricular activities

6185

99.04

0.004**

0.001

0.018

 g. A school counselor

6162

98.67

0.000

−0.001

0.005

 h. Friends

6192

99.15

0.011**

0.004

0.041

 j. Acquaintances via social media

6186

99.06

0.002

0.000

0.012

  1. ICC interclass correlation, CI confidence interval
  2. *p < 0.01, **p < 0.001