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Table 3 Agreement (per questionnaire item) between questionnaires (test-retest reliability) and questionnaire and interview responses (construct validity) as indicated by intraclass correlation coefficients (ICC) and percentage agreement (agree).

From: Test-retest reliability and construct validity of the ENERGY-child questionnaire on energy balance-related behaviours and their potential determinants: the ENERGY-project

Item

reliability

validity

 

ICC

agree

ICC

agree

How many times a week do you usually drink fizzy drinks and fruit squash?

.71

55

.59

55

On a day that you drink fizzy drinks and fruit squash, how many glasses, cans or bottles do you drink on such a day? Glasses or small bottles (250 ml)

.59

55

.24

58

On a day that you drink fizzy drinks and fruit squash, how many glasses, cans or bottles do you drink on such a day? Cans (330 ml)

.53

73

.44

71

On a day that you drink fizzy drinks and fruit squash, how many glasses, cans or bottles do you drink on such a day? Bottles (500 ml)

.58

77

-.01

81

How many fizzy drinks or fruit squash did you drink yesterday? Glasses or small bottles (250 ml)

.58

88

.48

64

How many fizzy drinks or fruit squash did you drink yesterday? Cans (330 ml)

.53

82

.21

86

How many fizzy drinks or fruit squash did you drink yesterday? Bottles (500 ml)

.55

84

.10

92

I think that drinking fizzy drinks or fruit squash is......

.68

65

.28

38

I think drinking fizzy drinks or fruit squash will make me fat

.55

49

.42

45

If I drink fizzy drinks or fruit squash, my parents/care givers think this is......

.53

66

.51

51

If I drink fizzy drinks or fruit squash, most of my friends think this is......

.63

65

.40

48

How often do your parents/care givers drink fizzy drinks or fruit squash?

1.00

60

1.00

51

How often do most of your friends drink fizzy drinks or fruit squash?

.57

62

.42

60

I like the taste of fizzy drinks or fruit squash

.67

68

.32

58

Drinking fizzy drinks or fruit squash is something that I do without even really thinking about

.59

47

.25

34

I find drinking no fizzy drinks or fruit squash...

.59

55

.22

32

If I ask my parents/care givers for a fizzy drink or fruit squash, I get one

.62

54

.54

44

I am allowed to take fizzy drinks or fruit squash whenever I want

.68

52

.30

43

Do your parents/care givers have rules about how many fizzy drinks or fruit squash you are allowed to drink?

.60

80

.49

75

If you ask your parents/care givers to buy a certain brand of fizzy drinks or fruit squash, will she do it?

.65

55

.42

33

Are there usually fizzy drinks or fruit squash at your home?

.74

61

.52

46

In which situations do you usually drink fizzy drinks or fruit squash? During the weekend

.54

80

.31

63

In which situations do you usually drink fizzy drinks or fruit squash? Breakfast

.42

94

-.01

98

In which situations do you usually drink fizzy drinks or fruit squash? Lunch

.54

83

.32

88

In which situations do you usually drink fizzy drinks or fruit squash? Dinner

.59

85

.30

80

In which situations do you usually drink fizzy drinks or fruit squash? At school

.64

91

.19

92

In which situations do you usually drink fizzy drinks or fruit squash? While watching television

.56

81

.35

81

In which situations do you usually drink fizzy drinks or fruit squash? As a thirst quencher between meals

.50

82

.27

86

In which situations do you usually drink fizzy drinks or fruit squash? During/after sports

.60

84

.36

80

In which situations do you usually drink fizzy drinks or fruit squash? When I am with friends

.48

74

.28

65

In which situations do you usually drink fizzy drinks or fruit squash? At birthdays/parties

.45

83

.27

72

In which situations do you usually drink fizzy drinks or fruit squash? I never drink fizzy drinks or fruit squash

.56

97

.32

95

How often do you spend your own money on fizzy drinks or fruit squash?

.65

67

.32

53

If the price of fizzy drinks and fruit squash were doubled, I would buy less fizzy drinks or fruit squash from my own money

.61

56

.42

42

How many times a week do you usually drink fruit juices?

.64

48

.69

52

On a day that you drink fruit juices, how many glasses or cartons do you drink on such a day? Glasses or small cartons (250 ml)

.54

60

.54

51

On a day that you drink fruit juices, how many glasses or cartons do you drink on such a day? Regular cartons (330 ml)

.52

73

.20

78

How many fruit juices did you drink yesterday? Glasses or small cartons (250 ml)

.48

53

.65

63

How many fruit juices did you drink yesterday? Regular cartons (330 ml)

.35

84

.17

83

I think that drinking fruit juices is...

.62

65

.19

50

I think it is recommended for children my age...

.54

67

.39

51

I think drinking fruit juices will make me fat.

.45

54

.45

47

I am allowed to take fruit juices whenever I want

.67

59

.48

53

Do your parents/care givers have rules about how many fruit juices you are allowed to drink?

.64

86

.68

87

Are there usually fruit juices in your home?

.67

59

.57

52

In which situations are you most likely to drink fruit juices? During the weekend

.41

70

.30

71

In which situations are you most likely to drink fruit juices? Breakfast

.57

78

.57

79

In which situations are you most likely to drink fruit juices? Lunch

.44

77

.24

73

In which situations are you most likely to drink fruit juices? Dinner

.41

81

.32

81

In which situations are you most likely to drink fruit juices? At school

.57

82

.29

87

In which situations are you most likely to drink fruit juices? While watching television

.47

81

.25

84

In which situations are you most likely to drink fruit juices? As a thirst quencher between meals

.46

76

.04

70

In which situations are you most likely to drink fruit juices? During/after sports

.46

77

.14

77

In which situations are you most likely to drink fruit juices? When I am with friends

.41

76

.62

88

In which situations are you most likely to drink fruit juices? At birthdays/parties

.42

71

.45

76

In which situations are you most likely to drink fruit juices? I never drink fruit juices

.53

98

.85

99

From Monday to Friday during school weeks, on how many days do you usually eat breakfast?

.73

83

.23

80

On how many days in the weekend days (Saturday and Sunday) do you usually eat breakfast?

.52

81

.39

87

What do you usually have for breakfast on school days?

.57

65

.63

71

What is the reason that you usually skip breakfast?

.74

83

.58

76

Did you eat breakfast yesterday?

.64

91

.26

91

Did you eat lunch yesterday?

.33

94

.00

96

Did you eat dinner yesterday?

.33

92

1.00

100

Did you eat anything between meals yesterday?

.42

76

.43

79

I think that eating breakfast is...

.59

77

.01

44

I think it is recommended for children of my age to...

.39

75

.30

77

I think not eating breakfast will make me fat

.44

54

.45

51

I think eating breakfast will make me fat

.48

55

.36

29

If I eat breakfast, my parents/care givers think this is...

.53

77

.21

52

If I eat breakfast, most of my friends think this is...

.53

63

.38

54

How often do your parents/care givers eat breakfast?

.71

72

.69

73

How often do most of your friends eat breakfast?

.53

63

.34

44

I like eating breakfast

.65

72

.29

57

Eating breakfast is something that I do without even really thinking about it

.59

54

.15

41

I find eating breakfast every day...

.71

65

.36

50

My parents/care givers encourage me to have breakfast

.65

59

.40

54

Do your parents/care givers have rules about whether you should eat breakfast?

.55

79

.35

67

If you ask your parents/care givers to buy a certain brand of food or drink for breakfast, will they do it?

.53

56

.34

51

Are there usually breakfast products (milk, cereals, bread et cetera) at your home?

.42

75

.25

80

How often do you eat breakfast with your parents/care givers?

.74

51

.66

41

In which situations do you usually eat your breakfast? At a set table at home

.67

91

.16

86

In which situations do you usually eat your breakfast? In bed

.56

95

.66

98

In which situations do you usually eat your breakfast? While watching television

.62

85

.36

84

In which situations do you usually eat your breakfast? On my way to school

.43

96

.00

98

In which situations do you usually eat your breakfast? At school before the class starts

.44

94

-.02

96

In which situations do you usually eat your breakfast? I never eat breakfast

.45

96

.00

99

How many days do you usually bike to school?

.94

88

.81

73

If you bike to school, how long does it take you to bike to school?

.81

85

.66

75

How many days a week do you usually walk to school?

.91

81

.84

75

If you walk to school, how long does it take you to walk to school?

.70

76

.59

74

How many days do you usually travel by car to school?

.91

84

.84

80

How many days do you usually travel by public transport (bus, school bus, tram, metro) to school?

.88

92

.81

96

How did you go to school today?

.79

83

.67

74

What do you usually do during breaks at school?

.80

86

.65

81

I do not participate in any sports activities

.76

92

.84

95

In a total week how many hours do you do this sport?

.74

55

.61

50

I do not have a second sport

.68

84

.51

75

In a total week how many hours do you do this sport?

1.00

43

1.00

36

How many hours of sports did you do yesterday?

.22

28

.22

50

I think that physical activity/sports is......

.54

86

.04

68

I think it is recommended for children of my age......

.47

48

.09

39

I think NOT doing physical activity/sports will make me fat

.49

54

.47

55

If I do physical activity/sports, my parents/care givers think this is......

.46

81

-.02

51

If I do physical activity/sports, most of my friends think this is......

.58

71

.35

58

How often do your parents/care givers do physical activity/sports?

.67

58

.59

47

How often do most of your friends do physical activity/sports?

.55

66

.32

55

I like doing physical activity/sports

.64

81

.09

80

Physical activity/sports is something that I do without even really thinking about it.

.56

52

.08

32

I find doing physical activity/sports for 1 hour every day......

.64

71

.15

37

My parents/care givers encourage me to be physically active/do sports

.65

62

.37

52

My parents/care givers help me if I need something for my sports

.58

76

.39

80

Do your parents/care givers have rules about whether you should be physically active/do sports?

.46

77

.49

77

Do your parents/care givers allow you to take part in physical activity/do sports?

.21

94

1.00

100

If you indicate that you like a certain physical activity/sports will your parents/care givers allow you to do it?

.62

63

.27

50

Do you have the following things at home that you can use for physical activities/sports? Bike

.54

91

.64

91

Do you have the following things at home that you can use for physical activities/sports? Tennis and or badminton racket

.66

85

.34

66

Do you have the following things at home that you can use for physical activities/sports? Ball

.49

91

.20

80

Do you have the following things at home that you can use for physical activities/sports? Sporting shoes

.49

89

.06

54

Do you have the following things at home that you can use for physical activities/sports? Skipping rope

.75

89

.42

71

Do you have the following things at home that you can use for physical activities/sports? Skates

.78

90

.39

69

Do you have the following things at home that you can use for physical activities/sports? Skis

.81

93

.49

83

Do you have the following things at home that you can use for physical activities/sports? Skate board

.76

88

.45

74

How often do you take part in physical activity/do sports with your parents/care givers?

.47

47

.24

51

About how many hours a day do you usually watch television in your free time? Week days (average of all weekdays)

.67

42

.63

44

About how many hours a day do you usually watch television in your free time? Weekend days (average of all weekend days)

.68

36

.56

40

About how many hours a day do you usually play games on a computer, or use your computer for leisure activities in your free time? Week days (average of all week days)

.67

41

.35

30

About how many hours a day do you usually play games on a computer, or use your computer for leisure activities in your free time? Weekend days (average of all weekend days)

.67

38

.65

37

About how many hours did you watch television yesterday?

.68

36

.70

44

About how many hours did you play games on a computer, games console or use your computer for leisure activities yesterday?

.54

39

.28

51

I think watching television is...

.68

66

.19

44

I think it is recommended for children of my age...

.48

46

.26

30

I think watching too much television can help making me fat

.65

56

.55

42

If I watch television, my parents/care givers think this is...

.52

69

.23

54

If I watch television, most of my friends think this is...

.64

67

.52

49

How often do your parents/care givers watch television?

.68

63

.34

47

How often do most of your friends watch television?

.49

62

.28

53

I like watching television

.67

63

.45

50

Watching television is something that I do without even really thinking about

.65

55

.30

34

I find not watching television...

.64

53

.43

30

My parents/care givers allow me to watch television whenever I want

.68

51

.35

33

If I ask my parents/care givers to watch television, I can do so

.63

61

.39

57

Do your parents/care givers have rules about how many hours per day you are allowed to watch television?

.60

80

.40

68

Do you have a television in your own bedroom?

.92

96

.81

91

How often do you watch television with your parents/care givers?

.64

41

.49

37

How often do you watch television during meals? Breakfast

.76

69

.66

64

How often do you watch television during meals? Lunch

.75

60

.67

58

How often do you watch television during meals? Dinner

.77

57

.61

46

Do you think you are too thin or too fat?

.87

83

.68

74

How often have you tried to get slimmer/thinner during the last year?

.79

77

.65

75

Do you try to get slimmer or thinner right now?

.72

89

.60

84

  1. Results are presented for all countries combined.