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Table 5 Test-retest reproducibility of inner urban environment rated by the commuting participants (n = 52-53)

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 9.58 ± 3.25 3 - 15 9.06 ± 3.07 3 - 14 0.53 ± 2.14 0.078 1.51 0.76 (0.62 - 0.86)
2. Hinders or stimulates 10.02 ± 3.19 3 - 15 9.26 ± 2.97 2 - 15 0.75 ± 2.09 0.011 1.48 0.75 (0.60 - 0.84)
3. Exhaust fumes 9.92 ± 2.84 3 - 15 9.87 ± 2.96 3 - 15 0.06 ± 2.66 0.878 1.88 0.58 (0.38 - 0.74)
4. Noise 10.02 ± 2.74 4 - 15 9.96 ± 2.37 4 - 15 0.06 ± 2.78 0.883 1.96 0.42 (0.17 - 0.62)
5. Flow of motor vehicles 12.09 ± 2.68 4 - 15 11.51 ± 2.30 5 - 15 0.58 ± 2.26 0.066 1.60 0.57 (0.36 - 0.73)
6. Speeds of motor vehicles 8.92 ± 2.77 1 - 15 9.28 ± 2.54 4 - 14 -0.36 ± 2.63 0.326 1.86 0.51 (0.28 - 0.68)
7. Speeds of bicyclists 8.77 ± 2.65 4 - 15 8.94 ± 2.62 3 - 14 -0.17 ± 1.32 0.350 0.93 0.87 (0.79 - 0.93)
8. Congestion: all types of vehicles 10.60 ± 3.18 2 - 15 10.26 ± 2.80 3 - 15 0.34 ± 2.05 0.233 1.45 0.76 (0.63 - 0.86)
9. Congestion: bicyclists 9.72 ± 3.46 2 - 15 8.96 ± 3.51 1 - 14 0.75 ± 1.94 0.007 1.37 0.83 (0.72 - 0.90)
10. Conflicts 9.31 ± 3.97 1 - 15 8.50 ± 3.66 1 - 15 0.81 ± 2.77 0.041 1.96 0.72 (0.56 - 0.83)
11. Bicycle paths† 6.70 ± 2.07 2 - 10 6.72 ± 2.16 1 - 10 -0.02 ± 1.74 0.937 1.23 0.67 (0.49 - 0.79)
12. Traffic: unsafe or safe 8.89 ± 3.44 1 - 15 8.94 ± 3.30 3 - 15 -0.06 ± 2.75 0.881 1.94 0.67 (0.50 - 0.80)
13. Greenery 7.08 ± 3.82 1 - 15 7.45 ± 3.52 1 - 14 -0.38 ± 2.88 0.334 2.04 0.69 (0.52 - 0.81)
14. Ugly or beautiful 11.38 ± 2.68 5 - 15 11.04 ± 2.67 3 - 15 0.34 ± 2.17 0.261 1.53 0.67 (0.49 - 0.79)
15. Course of the route 7.34 ± 3.54 1 - 14 7.08 ± 3.50 1 - 14 0.26 ± 3.59 0.595 2.54 0.48 (0.25 - 0.67)
16. Hilliness 4.74 ± 3.29 1 - 12 5.62 ± 3.50 1 - 14 -0.89 ± 3.15 0.045 2.23 0.55 (0.33 - 0.71)
17. Red lights 8.29 ± 4.03 1 - 15 8.37 ± 3.76 1 - 15 -0.08 ± 3.48 0.874 2.46 0.61 (0.40 - 0.75)
18. Short or long 6.53 ± 2.22 2 - 10 6.94 ± 2.06 2 - 12 -0.42 ± 1.78 0.096 1.26 0.64 (0.46 - 0.78)
  1. *Intraclass correlation coefficient with 95% confidence interval.
  2. †Minimal value = 0, and maximal value = 10.