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Table 1 Parent and adolescent version items, means, and standard deviations from the SDQ

From: Parent-adolescent informant discrepancy on the Strengths and Difficulties Questionnaire in the UK Millennium Cohort Study

Item

Parent version

Mean

SD

Adolescent version

Mean

SD

 

Conduct problems

1.00

1.33

 

1.65

1.50

 5

Often has temper tantrums or hot tempers

0.40

0.63

I get very angry

0.53

0.65

 7

Generally obedient (r)

0.42

0.57

I usually do as I am told (r)

0.65

0.56

 12

Often fights with other children

0.04

0.24

I fight a lot

0.15

0.40

 18

Often lies or cheats

0.14

0.40

I am often accused of lying or cheating

0.19

0.46

 22

Steals from home, school, or elsewhere

0.04

0.23

I take things that are not mine

0.11

0.35

 

Hyperactivity-inattention

2.33

2.18

 

3.65

2.25

 2

Restless, overactive

0.32

0.58

I am restless

0.90

0.69

 10

Constantly fidgeting or squirming

0.23

0.52

I am constantly fidgeting

0.64

0.72

 15

Easily distracted, concentration wanders

0.52

0.67

I am easily distracted

0.93

0.72

 21

Thinks things out before acting (r)

0.65

0.62

I think before I do things (r)

0.68

0.58

 25

Sees tasks through to the end (r)

0.57

0.64

I finish the work I am doing (r)

0.77

0.62

 

Emotion symptoms

1.93

2.23

 

3.44

2.45

 3

Often complains of headaches

0.39

0.63

I get a lot of headaches

0.45

0.65

 8

Many worries

0.55

0.68

I worry a lot

1.07

0.77

 13

Often unhappy, downhearted

0.27

0.55

I am often unhappy

0.47

0.65

 16

Nervous or clingy in new situations

0.45

0.65

I am nervous in new situations

1.05

0.76

 24

Many fears, easily scared

0.29

0.55

I have many fears

0.49

0.66

 

Peer problems

1.67

1.75

 

2.10

1.69

 6

Rather solitary, tends to play alone

0.50

0.67

I am usually on my own

0.58

0.68

 11

Has at least one good friend (r)

0.16

0.45

I have one good friend or more (r)

0.16

0.42

 14

Generally liked by other children (r)

0.20

0.44

Other people my age generally like me (r)

0.51

0.58

 19

Picked on or bullied by other children

0.18

0.47

Other children or young people pick on me

0.13

0.38

 23

Gets on better with adults than with other children

0.63

0.70

I get on better with adults than with people my age

0.70

0.69

 

Pro-sociality

8.48

1.74

 

7.90

1.70

 1

Considerate of other people’s feelings

1.71

0.48

I try to be nice to other people

1.79

0.42

 4

Shares readily with other children

1.69

0.54

I usually share with others

1.49

0.59

 9

Helpful if someone is hurt

1.78

0.46

I am helpful if someone is hurt

1.65

0.52

 17

Kind to younger children

1.87

0.37

I am kind to younger children

1.77

0.46

 20

Often volunteers to help others

1.44

0.64

I often volunteer to help others

1.19

0.64

  1. Response categories (0 = Never, 1 = Sometimes, 2 = Often); r = reverse scored; Hyperactivity-inattention was not explored in the current study due to poor CFA model fit