Table 6 |
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|
Test-retest reproducibility of suburban environment rated by the commuting participants (n = 44-45) |
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|
Test |
Retest |
Test-retest difference |
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|
|
|
|
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|
Item |
Mean ± SD |
Min - max |
Mean ± SD |
Min - max |
Mean ± SD |
t-test p-value |
Typical error |
ICC (95% CI)* |
|
|
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|
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) |
|
|
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|
*Intraclass correlation coefficient with 95% confidence interval. †Minimal value = 0, and maximal value = 10. |
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|
Wahlgren et al. International Journal of Behavioral Nutrition and Physical Activity 2010 7:58 doi:10.1186/1479-5868-7-58 |
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