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Table 4 Percentiles for the parent-reported SDQ version for 15-year-old males and females

From: Normative data for the self-reported and parent-reported Strengths and Difficulties Questionnaire (SDQ) for ages 12–17

SDQ scale

Gender

SDQ scale score

0

1

2

3

4

5

6

7

8

9

10

11

Emotional

F

31.9

52.9

68.1

79.0

86.9

92.3

95.9

98.1

99.3

99.8

100

 
 

M

39.0

58.2

71.0

80.1

86.8

91.7

95.1

97.5

98.9

99.7

100

 

Conduct

F

49.8

75.8

89.1

95.4

98.2

99.4

99.8

100

100

100

100

 
 

M

52.3

73.3

84.9

91.7

95.6

97.9

99.1

99.7

99.9

100

100

 

Hyper

F

31.8

52.3

67.1

77.9

85.8

91.5

95.3

97.7

99.1

99.8

100

 
 

M

14.5

30.7

46.3

60.3

72.2

81.8

89.2

94.4

97.6

99.4

100

 

Social

F

43.1

65.2

78.9

87.6

93.1

96.4

98.3

99.3

99.8

100

100

 
 

M

28.8

52.4

69.8

82.0

90.0

94.9

97.7

99.1

99.7

100

100

 

Prosocial

F

100

99.8

99.2

98.0

95.6

91.4

84.5

73.8

57.8

34.4

0.0

 
 

M

100

99.9

99.5

98.3

95.6

90.2

80.8

66.1

45.6

21.3

0.0

 

Externalizing

F

23.2

41.3

55.5

66.7

75.5

82.2

87.3

91.2

94.0

96.0

97.5

98.4

 

M

12.1

25.7

38.8

50.7

61.1

69.9

77.3

83.2

87.9

91.6

94.3

96.3

Internalizing

F

20.0

36.6

50.3

61.5

70.6

77.9

83.7

88.2

91.6

94.2

96.1

97.5

 

M

17.5

33.0

46.3

57.6

66.9

74.7

80.9

85.9

89.8

92.8

95.1

96.8

Total

F

0.1

11.5

21.7

32.0

42.1

51.4

59.6

66.4

72.1

76.8

80.7

83.9

 

M

0.0

7.8

15.1

22.9

31.0

39.1

47.0

54.4

60.9

66.6

71.6

75.8

SDQ scale

Gender

SDQ scale score

11

12

13

14

15

16

17

18

19

20

30

40

 

M

            

Emotional

F

            
 

M

            

Conduct

F

            
 

M

            

Hyper

F

            
 

M

            

Social

F

            
 

M

            

Prosocial

F

            
 

M

98.4

99.1

99.5

99.7

99.9

99.9

100

100

100

100

  

Externalizing

F

96.3

97.7

98.6

99.3

99.6

99.8

99.9

100

100

100

  
 

M

97.5

98.5

99.1

99.5

99.8

99.9

100

100

100

100

  

Internalizing

F

96.8

97.9

98.8

99.3

99.6

99.8

99.9

100

100

100

  
 

M

83.9

86.6

88.8

90.6

92.1

93.4

94.4

95.3

96.0

96.7

99.3

100

Total

F

75.8

79.4

82.4

85.1

87.3

89.2

90.8

92.1

93.3

94.3

98.8

100

  1. SDQ Strengths and Difficulties Questionnaire, F females, M males
  2. Norms for all other age groups per SDQ version (self-reported, parent-reported) are presented in Tables S1–S6 (Additional file 2)