Table 2.
Summary of reliability measures of physical activity and sedentary behaviors questions in adults and children
| Number of questions | Mean ICC (range) | |
|---|---|---|
| Adults | ||
| Type and frequency of physical activity | 6 | 0.518 (0.306–0.733) |
| Type and frequency of sedentary behaviors | 5 | 0.820 (0.584–0.935) |
| Social support for physical activity | 3 | 0.782 (0.737–0.821) |
| Inactivity perceptions/attitudes related to: | ||
| Lack of time/interest/motivation/enjoyment | 5 | 0.817 (0.732–0.881) |
| Body image and health | 3 | 0.735 (0.673–0.777) |
| Environmental factors | 6 | 0.673 (0.125–0.826) |
| Self-efficacy of physical activity engagement | 7 | 0.848 (0.705–0.910) |
| Physical activity recommendations knowledge | 1 | 0.796 |
| Children | ||
| Type and frequency of physical activity | 20 | 0.797 (0.001–0.996) |
| Type and frequency of sedentary behaviors | 5 | 0.773 (0.692–0.838) |
| Parental support for physical activity | 2 | 0.847 (0.805–0.888) |
| Parental sabotage for physical activity | 2 | 0.766 (0.707–0.824) |
| Inactivity perceptions/attitudes | 4 | 0.803 (0.772–0.835) |
| Physical activity recommendations knowledge | 1 | 0.852 |