Table 2 Summary of psychosocial variable measurements.
Variable | Number of items/response format | Example of sample items | Definition of physical activity | Original reference source on which items were based | Cronbach's alpha, pre- – post-test |
|---|---|---|---|---|---|
Social support | How often, over the last three months, did... | None | 29 | ||
- family | 11/1 (none) -5 (very often) | ... your family/friends, acquaintances, co-workers do physical activities with you? | 0.92 – 0.92 | ||
- friends, acquaintances, and co-workers | 11/1 (none) -5 (very often) | 0.93 – 0.93 | |||
Self-efficacy | I am confident I can participate in planned physical activity when... | All physical activity, except work-related physical activity | 30 | ||
- psychological barriers | 7/1 (not at all confident) -7 (extremely confident) | ... I am tired | 0.92 – 0.92 | ||
- practical barriers | 5/1 (not at all confident) -7 (extremely confident) | ... I have a lot of work to do | 0.79 – 0.73 | ||
Attitude | Being regularly physically active the next month will to me be ... | None | 31,32 | ||
- Evaluative | 5/1–7 | ... useless-useful | 0.91 – 0.91 | ||
- Affective | 3/1–7 | ... unpleasant-pleasant. | 0.86 – 0.87 | ||
Perceived behavioural control | 4/1–7 | How sure are you that you could be regularly physically active the next month? unsure – sure | All types of physical activities | 32 | 0.83 – 0.82 |
Identity | 4/1 (suits badly) – 5 (suits well) | To what degree do these statements describe you as a person: I view myself as a person who is concerned about physical activity | None | 24,33,34 | 0.92 – 0.92 |