Table 3 Reliability and validity evidence for continuous physical activity environment variables
From: Development of HomeSTEAD’s physical activity and screen time physical environment inventory
Means | Reliability (Time 1, 2, and 3) ICC1 | Validity (Time 2 vs. OBS) | |||||||
|---|---|---|---|---|---|---|---|---|---|
Label | Score | Time 1 | Time 2 | Time 3 | OBS | N | Corr | Mean comp (p-value) | |
Adult physical activity equipment | |||||||||
Number of types | 0-15 | 5.8 | 5.8 | 5.8 | 4.0 | 0.94 (0.92, 0.95) | 114 | 0.79 | 0.000 |
Condition: Good to Broken | 1-4 | 1.1 | 1.1 | 1.10 | 1.1 | 0.66 (0.58, 0.74) | 99 | 0.27 | 0.957 |
Number in “Good Condition” | 0-15 | 5.1 | 5.3 | 5.3 | 3.7 | 0.92 (0.90, 0.94) | 114 | 0.79 | 0.000 |
Accessibility: Easy to Hard | 1-4 | 1.5 | 1.4 | 1.4 | 1.9 | 0.67 (0.59, 0.74) | 98 | 0.30 | 0.000 |
Number “Easy to Access” | 0-15 | 4.1 | 4.3 | 4.1 | 1.9 | 0.82 (0.77, 0.86) | 114 | 0.52 | 0.000 |
Fixed play equipment | |||||||||
Number of types | 0-8 | 2.1 | 2.1 | 2.3 | 2.0 | 0.89 (0.86, 0.92) | 113 | 0.87 | 0.494 |
Condition: Good to Broken | 1-4 | 1.2 | 1.2 | 1.2 | 1.1 | 0.84 (0.78, 0.89) | 63 | 0.63 | 0.352 |
Number in “Good Condition” | 0-8 | 1.8 | 1.9 | 2.0 | 1.8 | 0.91 (0.88, 0.93) | 114 | 0.82 | 0.821 |
Accessibility: Easy to Hard | 1-4 | 1.4 | 1.4 | 1.3 | 1.2 | 0.85 (0.80, 0.90) | 62 | 0.84 | 0.205 |
Number “Easy to Access” | 0-8 | 1.9 | 1.9 | 1.9 | 1.7 | 0.92 (0.90, 0.94) | 114 | 0.87 | 0.559 |
Portable play equipment | |||||||||
Number of types | 0-23 | 10.9 | 11.0 | 11.0 | 8.9 | 0.93 (0.91, 0.95) | 113 | 0.81 | 0.001 |
Condition: Good to Broken | 1-4 | 1.1 | 1.1 | 1.1 | 1.1 | 0.24 (0.13, 0.35) | 111 | -0.03 | 0.420 |
Number in “Good Condition” | 0-23 | 9.5 | 10.0 | 9.7 | 8.1 | 0.86 (0.82, 0.89) | 114 | 0.75 | 0.001 |
Accessibility: Easy to Hard | 1-4 | 1.6 | 1.5 | 1.5 | 1.6 | 0.66 (0.58, 0.74) | 108 | 0.26 | 0.093 |
Number “Easy to Access” | 0-23 | 7.1 | 7.5 | 7.4 | 5.3 | 0.80 (0.74, 0.85) | 114 | 0.58 | 0.000 |
Television | |||||||||
Number of TVs in home | Open | 2.2 | 2.3 | 2.3 | 2.3 | 0.97 (0.97, 0.98) | 112 | 0.93 | 0.935 |
Average TV size (inches) | 24-60 | 34.4 | 34.9 | 35.1 | 34.3 | 0.92 (0.89, 0.94) | 107 | 0.75 | 0.575 |
Number of TVs with cable | 0-6 | 1.8 | 1.7 | 1.8 | 1.8 | 0.95 (0.93, 0.96) | 104 | 0.93 | 0.864 |
Video games | |||||||||
Number of VG types | 0-6 | 1.0 | 1.1 | 1.1 | 1.1 | 0.89 (0.86, 0.92) | 113 | 0.76 | 0.930 |
Number of VGs | Open | 8.0 | 8.6 | 9.4 | 10.7 | 0.83 (0.78, 0.87) | 113 | 0.70 | 0.192 |
Number of VG child is allowed to use | 0-6 | 0.7 | 0.8 | 0.8 | 0.8 | 0.68 (0.60, 0.75) | 114 | 0.58 | 0.768 |
Computers | |||||||||
Number of computers in home | Open | 2.2 | 2.2 | 2.2 | 2.2 | 0.97 (0.96, 0.98) | 111 | 0.81 | 0.971 |
Number of computers child is allowed to use | 0-5 | 1.2 | 1.2 | 1.2 | 1.3 | 0.78 (0.73, 0.84) | 114 | 0.57 | 0.403 |
Portable electronic devices | |||||||||
Number of PED types | 0-7 | 1.3 | 1.4 | 1.3 | 1.3 | 0.85 (0.80, 0.89) | 113 | 0.76 | 0.733 |
Number of PEDs | 0-63 | 1.7 | 1.9 | 1.8 | 1.7 | 0.75 (0.68, 0.81) | 113 | 0.65 | 0.358 |
Number of PEDs child is allowed to use | 0-7 | 1.0 | 0.9 | 1.0 | 1.0 | 0.75 (0.68, 0.81) | 114 | 0.69 | 0.711 |
Number of PEDs in child room | 0-19 | 0.4 | 0.4 | 0.4 | 0.3 | 0.68 (0.59, 0.75) | 114 | 0.45 | 0.553 |
Use of VG in Car: Never to always | |||||||||
Average score for all car trips | 1-5 | 1.8 | 1.9 | 2.0 | 0.78 (0.70, 0.85) | ||||
Long car trips (>60 minutes) | 1-5 | 2.0 | 2.5 | 2.5 | 0.76 (0.67, 0.84) | ||||
Short car trips (≤30 minutes) | 1-5 | 1.7 | 1.5 | 1.6 | 0.68 (0.57, 0.78) | ||||
Use of TV/videos in Car: Never to always) | |||||||||
Average score for all car trips | 1-5 | 2.1 | 2.1 | 2.3 | 0.74 (0.66, 0.81) | ||||
Long car trips (>60 minutes) | 1-5 | 2.8 | 2.9 | 3.1 | 0.72 (0.63, 0.80) | ||||
Short car trips (≤30 minutes) | 1-5 | 1.5 | 1.5 | 1.5 | 0.89 (0.85, 0.92) | ||||
Yard | |||||||||
Size of yard (none to large) | 0-5 | 3.8 | 3.7 | 3.7 | 2.8 | 0.87 (0.83, 0.90) | 109 | 0.31 | 0.000 |
Yard space allows for vigorous physical activity (none to a lot) | 1-6 | 4.7 | 4.8 | 4.7 | 4.5 | 0.80 (0.74, 0.85) | 112 | 0.48 | 0.064 |
Amount of portable play equipment in yard (none to a lot) | 1-6 | 2.7 | 2.7 | 2.9 | 2.2 | 0.72 (0.65, 0.78) | 112 | 0.45 | 0.010 |
Number of dogs | Open | 0.6 | 0.6 | 0.6 | 0.6 | 0.79 (0.74, 0.85) | 109 | 0.97 | 0.999 |
How often child play outside with dog (never to very often) | 1-5 | 2.5 | 2.5 | 2.5 | 0.88 (0.84, 0.91) | ||||
Number of natural elements | 0-15 | 7.8 | 8.0 | 8.2 | 6.1 | 0.86 (0.82, 0.90) | 113 | 0.42 | 0.000 |