Table 5

Test-Retest Reliability of the SRTS Parent Survey on barriers

Q10: What of the following issues affected your decision to allow, or not allow, your child to walk or bike to/from school? (n = 112)

Q11: Would you probably let your child walk or bike to/from school if this problem were changed or improved? (n = 112)


% Agreement

Kappa Coefficient (95% CI)

% Agreement

Kappa Coefficient (95% CI)


Distance

78.6

0.57 (0.38, 0.75)

64.3

0.49 (0.37, 0.60)


Convenience

93.8

0.76 (0.58, 0.95)

65.2

0.35 (0.23, 0.47)


Time

79.5

0.46 (0.27, 0.64)

58.0

0.31 (0.19, 0.43)


After-school activities

83.9

0.43 (0.25, 0.61)

63.4

0.31 (0.19, 0.43)


Speed of traffic

67.9

0.36 (0.18, 0.54)

56.3

0.39 (0.27, 0.50)


Amount of traffic

71.4

0.44 (0.26, 0.62)

63.4

0.47 (0.35, 0.58)


Presence of adults to walk with

77.7

0.40 (0.21, 0.58)

63.4

0.37 (0.24, 0.49)


Sidewalks

80.4

0.54 (0.36, 0.73)

63.4

0.41 (0.28, 0.53)


Safety

67.0

0.34 (0.16, 0.52)

57.1

0.37 (0.26, 0.49)


Presence of crossing guards

77.7

0.31 (0.13, 0.49)

61.6

0.32 (0.20, 0.45)


Violence

84.8

0.68 (0.49, 0.86)

66.1

0.48 (0.36, 0.59)


Weather

82.1

0.60 (0.42, 0.79)

63.4

0.41 (0.30, 0.53)


Q10: Possible responses were Yes and No Response/Missing

Q11: Possible responses were Yes, No, Not Sure, and No Response/Missing

In both questions, 'missing' was a valid response for agreement analysis; separate analyses with missing values excluded (not shown) produced similar results

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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