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Table 6 Test-retest reproducibility of suburban environment rated by the commuting participants (n = 44-45)

From: The active commuting route environment scale (ACRES): development and evaluation

  Test Retest Test-retest difference
Item Mean ± SD Min - max Mean ± SD Min - max Mean ± SD t-test
p-value
Typical
error
ICC (95% CI)*
1. On the whole 11.07 ± 2.86 4 - 15 10.73 ± 2.73 5 - 15 0.34 ± 2.23 0.316 1.58 0.68 (0.49 - 0.81)
2. Hinders or stimulates 11.31 ± 2.60 4 - 15 10.38 ± 2.91 3 - 15 0.93 ± 2.28 0.009 1.61 0.62 (0.40 - 0.77)
3. Exhaust fumes 7.78 ± 3.65 1 - 15 7.20 ± 3.67 1 - 15 0.58 ± 2.78 0.171 1.96 0.71 (0.52 - 0.83)
4. Noise 8.36 ± 3.45 1 - 14 8.38 ± 3.71 1 - 15 -0.02 ± 2.97 0.960 2.10 0.66 (0.46 - 0.80)
5. Flow of motor vehicles 9.80 ± 3.88 2 - 15 8.78 ± 3.90 2 - 15 1.02 ± 3.18 0.037 2.25 0.64 (0.44 - 0.79)
6. Speeds of motor vehicles 9.22 ± 2.93 1 - 15 9.07 ± 2.98 2 - 14 0.16 ± 3.10 0.738 2.19 0.46 (0.20 - 0.66)
7. Speeds of bicyclists 9.11 ± 2.46 5 - 15 8.95 ± 2.40 4 - 14 0.16 ± 1.57 0.505 1.11 0.79 (0.65 - 0.88)
8. Congestion: all types of vehicles 6.47 ± 2.97 1 - 13 6.31 ± 3.17 1 - 13 0.16 ± 2.99 0.729 2.11 0.53 (0.29 - 0.71)
9. Congestion: bicyclists 5.40 ± 3.17 1 - 12 5.67 ± 3.45 1 - 13 -0.27 ± 2.17 0.414 1.53 0.79 (0.65 - 0.88)
10. Conflicts 5.02 ± 3.28 1 - 13 5.75 ± 3.48 1 - 13 -0.73 ± 3.16 0.134 2.23 0.56 (0.31 - 0.73)
11. Bicycle paths† 7.82 ± 2.33 2 - 10 7.48 ± 2.51 2 - 10 0.34 ± 2.25 0.321 1.59 0.57 (0.33 - 0.74)
12. Traffic: unsafe or safe 12.04 ± 2.29 6 - 15 11.49 ± 2.56 6 - 15 0.56 ± 2.33 0.117 1.65 0.53 (0.28 - 0.71)
13. Greenery 10.93 ± 2.82 2 - 15 10.29 ± 2.87 2 - 15 0.64 ± 2.48 0.088 1.75 0.61 (0.38 - 0.76)
14. Ugly or beautiful 10.27 ± 3.45 4 - 15 9.89 ± 3.12 3 - 15 0.38 ± 1.97 0.205 1.39 0.82 (0.69 - 0.90)
15. Course of the route 4.98 ± 3.56 1 - 13 5.29 ± 2.99 1 - 11 -0.31 ± 2.69 0.441 1.90 0.67 (0.47 - 0.80)
16. Hilliness 6.27 ± 3.96 1 - 14 6.56 ± 3.59 1 - 13 -0.29 ± 3.37 0.568 2.38 0.61 (0.39 - 0.76)
17. Red lights 4.40 ± 3.47 1 - 15 4.98 ± 3.48 1 - 14 -0.58 ± 3.12 0.221 2.21 0.59 (0.37 - 0.75)
18. Short or long 6.89 ± 2.72 1 - 12 7.13 ± 2.30 1 - 10 -0.24 ± 2.06 0.430 1.46 0.67 (0.47 - 0.80)
  1. *Intraclass correlation coefficient with 95% confidence interval.
  2. †Minimal value = 0, and maximal value = 10.