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Table 2 Test-Retest Reliability and Convergent Validity of the SRTS Student Travel Tally

From: Reliability and validity of the Safe Routes to school parent and student surveys

  Six Travel Modes (surveyed) Five Travel Modes (family vehicle & carpool combined)
  n Mean % Agreement Mean Kappa (95% CI) n Mean % Agreement Mean Kappa (95% CI)
Test-Retest of Student Responses       
   Trip to school 542 92.8 0.86 (0.79, 0.93) 542 94.1 0.88 (0.81, 0.96)
   Trip home 468 92.1 0.85 (0.78, 0.92) 468 92.9 0.86 (0.79, 0.93)
Comparison of Student and Parent Responses       
   Trip to school 418 86.8 0.78 (0.70, 0.85) 418 90.4 0.82 (0.74, 0.91)
   Trip home 370 88.1 0.77 (0.70, 0.84) 370 91.1 0.82 (0.75, 0.90)
  1. CI = confidence interval