Table 5

Validity statistics for physical activity equipment separated by categories; Mean (SD) for participant at Time 1 and Research Assistants with Pearson correlation coefficients, t-test p-value or Mantel-Hanzel Chi Square test


Time 1
RA
T1 vs RA



Item Category
n
mean (SD)
n
mean (SD)
Correlation
t-test p-value

Sports Equipment






     # of Items
31
33.5 (34.20)
31
42.9 (45.53)
0.98
< 0.01
     Accessibility






          Away and difficult to get to

10.4

2.4
M-H χ2 = 64.2, p < 0.01
          Away and easy to get to

24.5

28.0


          In view and difficult to get to

3.7

0.8


          In view and easy to get to

61.4

68.8



Fitness Equipment






     # of items
28
6.4 (4.31)
28
6.4 (4.78)
0.82
0.99
     Accessibility






          Away and difficult to get to

5.9

4.8
M-H χ2 = 0.11, p = 0.73
          Away and easy to get to

25.5

26.7


          In view and difficult to get to

3.9

0.0


          In view and easy to get to

64.7

68.6



Transportation Equipment






     # of items
28
7.7 (5.44)
31
7.8 (4.71)
0.68
0.90
     Accessibility






          Away and difficult to get to

4.3

2.2
M-H χ2 = 1.41, p = 0.23
          Away and easy to get to

16.1

14.3


          In view and difficult to get to

10.8

5.5


          In view and easy to get to

68.8

78.0



Water Sports Equipment






     # of items
16
4.7 (5.75)
17
4.6 (5.58)
0.92
0.75
     Accessibility






          Away and difficult to get to

12.0

0.0
M-H χ2 = 0.29, p = 0.59
          Away and easy to get to

44.0

52.0


          In view and difficult to get to

4.0

8.0


          In view and easy to get to

40.0

40.0



Outdoor/Yard Equipment






     # of items
28
12.8 (10.48)
28
14.4 (9.45)
0.80
0.17
     Accessibility






          Away and difficult to get to

14.3

2.8
M-H χ2 = 12.63, p < 0.01
          Away and easy to get to

11.2

10.7


          In view and difficult to get to

6.2

3.4


          In view and easy to get to

68.3

83.1



Sirard et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:24   doi:10.1186/1479-5868-5-24