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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.