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Table 3 Test-retest reliability (intraclass correlation coefficients - ICC); percent agreement and weighted Kappa of quintiles of time spent in MPA, VPA and MVPA, measured by V-APARQ assessments in a sample of 146 junior high school students

From: Validity and reliability of a physical activity questionnaire for Vietnamese adolescents

 

ICC

Percent agreement**

Weighted Kappa** (95 % CI)

 

All

Boys

Girls

All

Boys

Girls

All

Boys

Girls

 

(n = 146)

(n = 69)

(n = 77)

(n = 146)

(n = 69)

(n = 77)

(n = 146)

(n = 69)

(n = 77)

MPA

0.37*

0.45*

0.30*

83.4

83.8

82.8

0.33

0.34

0.33

(0.28, 0.35)

(0.25, 0.50)

(0.29, 0.40)

VPA

0.62*

0.65*

0.60*

88.0

87.8

88.2

0.52

0.58

0.45

(0.42, 0.57)

(0.43, 0.72)

(0.36, 0.58)

MVPA

0.57*

0.70*

0.53*

93.8

91.8

92.4

0.75

0.78

0.70

       

(0.74, 0.78)

(0.32, 0.85)

(0.30, 0.74)

  1. * The % agreement and Kappa are based on quintiles.
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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