Table 3

Test-Retest Reliability of the SRTS Student Travel Tally by grade level of student

Trip to School

Trip Home After School


Grade

n

Mean % Agreement

Mean Kappa (95% CI)

n

Mean % Agreement

Mean Kappa (95% CI)


Student Test-Retest


K

124

91.9

0.83 (0.67, 1.00)

124

94.4

0.90 (0.77, 1.03)


1

36

100.0

1.00 (0.70, 1.30)

37

94.6

0.86 (0.61, 1.11)


2

53

96.2

0.92 (0.66, 1.18)

34

85.3

0.71 (0.47, 0.95)


3

97

90.7

0.85 (0.72, 0.99)

70

91.4

0.84 (0.68, 1.01)


4

138

93.5

0.85 (0.71, 0.99)

133

94.7

0.90 (0.76, 1.03)


5

94

90.4

0.83 (0.67, 0.99)

70

85.7

0.75 (0.59, 0.91)


Parent-Student Agreement


K

86

81.4

0.68 (0.51, 0.85)

77

84.4

0.65 (0.50, 0.80)


1

53

83.0

0.71 (0.50, 0.92)

56

91.1

0.81 (0.63, 0.99)


2

60

91.7

0.85 (0.65, 1.06)

53

81.1

0.67 (0.49, 0.85)


3

82

85.4

0.77 (0.62, 0.91)

68

86.8

0.76 (0.59, 0.92)


4

97

93.8

0.89 (0.72, 1.06)

87

93.1

0.87 (0.71, 1.02)


5

40

82.5

0.67 (0.46, 0.88)

29

93.1

0.89 (0.68, 1.10)


McDonald et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8:56   doi:10.1186/1479-5868-8-56

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