Table 2 Overview of measurement tools
Outcome | Measure | Number of items | Collection point (month) |
|---|---|---|---|
Physical activity | 8 | 0, 3, 9 | |
Objective | 0, 3, 9 | ||
Sitting time | Workforce sitting questionnaire [43] | 10 | 0, 3, 9 |
Sleep behaviour | Behavioral Risk Factor Surveillance | ||
Screening Sleep Module [44] | 4 | 0, 3, 9 | |
Pittsburgh Sleep Quality Index [45] | 2 | 0, 3, 9 | |
Depression, anxiety, stress | DASS 21 [46] | 21 | 0, 3, 9 |
Quality of life | SF-12 [47] | 12 | 0, 3, 9 |
Socio-cognitive correlates of physical activity | 40 | 0, 3, 9 | |
Physical activity environment | PANES [54] | 12 | 0 |
Learning style | Newly developed items | 4 | 0 |
Internet and technology use | Dimensions of Internet use [55] | 1 | 0 |
Items adapted from previous work [56] | 7 | 0 | |
Internet self-efficacy | Internet Self-efficacy scale [57] | 8 | 0 |
Website statistics | Google Analytics | Objective | Continuous |
Additional newly developed items | 4 | 3 | |
User friendliness and usability | System Usability Survey [58] | 16 | 3 |
Additional newly developed items | 5 | 3 | |
Delivery mode usability and preference | Items adapted from previous work [24] | 9 for text-group | 3 |
14 for video-group | |||
Advice acceptability | Items adapted from previous work [59] | 16 | 3 |
Demographics | Commonly used items | 13 | 0 |