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Table 4 Results of exploratory factor analysis (Varimax Rotation) of parent- and teacher-rated SDQs for Japanese children

From: Normative data and psychometric properties of the strengths and difficulties questionnaire among Japanese school-aged children

SDQ items

Parent ratings (n = 24,519)

Teacher ratings (n = 7,977)

Factor I

Factor II

Factor III

Factor IV

Factor V

Communality

Factor I

Factor II

Factor III

Factor IV

Factor V

Communality

 

Pro

Hyper

Emotion

Conduct

Peer

 

Pro

Hyper

Emotion

Conduct

Peer

 

Initial eigenvalue

4.88

2.60

1.70

1.21

1.12

11.52

7.07

2.60

1.82

1.24

1.08

13.80

% of variance

9.06

16.82

23.68

28.39

33.03

 

16.68

28.53

38.89

47.25

55.22

 

Prosocial behavior

            

  1 considerate

-.63

    

.45

-.75

    

.65

  4 shares

-.49

    

.26

-.64

    

.44

  9 caring

-.66

    

.45

-.81

    

.69

  17 kind to kids

-.53

    

.29

-.74

    

.57

  20 helps out

-.58

    

.37

-.78

    

.63

Hyperactivity/inattention

            

  2 restless

 

.56

   

.46

 

.80

   

.74

  10 fidgety

 

.27

.34

  

.27

 

.61

   

.56

  15 distractive

 

.69

   

.63

 

.82

   

.77

  21 reflective (*)

 

.56

   

.44

 

.57

   

.63

  25 persistent (*)

 

.64

   

.50

 

.59

   

.59

Emotional symptoms

            

  3 somatic complaints

  

.31

  

.14

  

.54

  

.37

  8 worries

  

.55

  

.37

  

.75

  

.59

  13 unhappy

  

.44

  

.30

  

.65

  

.48

  16 clingy

  

.62

  

.43

  

.68

  

.56

  24 fears

  

.51

  

.29

  

.68

  

.51

Conduct problems

            

  5 temper

   

.45

 

.33

   

.57

 

.49

  7 obedient (*)

.44

  

.28

 

.30

.54

  

.38

 

.44

  12 fights

   

.46

 

.25

   

.67

 

.60

  18 lies, cheats

   

.41

 

.31

   

.62

 

.54

  22 steals

   

.23

 

.07

   

.58

 

.34

Peer problems

            

  6 solitary

    

.41

.21

    

.70

.55

  11 good friend (*)

    

.38

.18

    

.61

.48

  14 popular (*)

    

.42

.34

.55

   

.42

.59

  19 picked on, bullied

    

.44

.33

    

.52

.44

  23 best with adults

    

.50

.31

    

.68

.54

  1. Note. SDQ, strengths and difficulties questionnaire. *indicates a reverse item and inverted scores were analyzed.