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Table 4 Test-retest reliability based on intraclass correlation coefficients (ICC) for the WHO HBSC questionnaire and the IPAQ

From: Reliability and validity of two frequently used self-administered physical activity questionnaires in adolescents

Questionnaire

All (n = 71)

Girls (n = 40)

Boys (n = 31)

13–15 years (n = 42)

16–18 years (n = 29)

 

ICC

95% CI

ICC

95% CI

ICC

95% CI

ICC

95% CI

ICC

95% CI

WHO HBSC questionnaire

          

   Frequency

0.73

0.60–0.82

0.87*

0.77–0.93

0.59

0.31–0.78

0.71

0.53–0.83

0.76

0.55–0.88

   Duration

0.71

0.57–0.81

0.76

0.58–0.86

0.66

0.40–0.83

0.62#

0.39–0.78

0.85

0.70–0.93

IPAQ

          

   Vigorous activity (days/week)

0.54

0.34–0.69

0.55

0.29–0.73

0.53

0.22–0.75

0.46

0.18–0.67

0.65

0.37–0.82

   Vigorous activity (min/day)

0.30

-0.07–0.56

0.57

0.20–0.80

0.24

-0.21–0.62

0.46

0.05–0.74

0.23

-0.23–0.61

   Moderate activity (days/week)

0.55

0.36–0.70

0.58

0.33–0.75

0.53

0.21–0.75

0.57

0.32–0.74

0.53

0.20–0.75

   Moderate activity (min/day)

0.34

0.22–0.60

0.36

-0.06–0.67

0.33

-0.20–0.72

0.67

0.25–0.88

0.21

-0.21–0.57

   Walking (days/week)

0.62

0.45–0.75

0.53*

0.27–0.72

0.77

0.56–0.89

0.81#

0.67–0.90

0.37

0.01–0.65

   Walking (min/day)

0.10

-0.10–0.39

0.06

-0.33–0.44

0.11

-0.35–0.54

0.11

-0.30–0.49

0.07

-0.36–0.49

   Sitting (min/per day)

0.27

-0.50–0.54

0.18

-0.22–0.54

0.43

-0.09–0.77

0.32

-0.13–0.67

0.03

-0.41–0.46

  1. ICC = Single measure intraclass correlation coefficient
  2. * Significant difference between genders (p < 0.05)
  3. # Significant difference between age groups (p < 0.05)