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Table 2 Measurement properties of psychosocial scales

From: Physical activity levels six months after a randomised controlled physical activity intervention for Pakistani immigrant men living in Norway

Variable Number of items / response format Example of sample items Original reference source on which items were based Cronbach`s alpha
     Baseline, FU1 and FU2 (range)
Social support   Have your family/friends… [47]  
- family 6 / 1 (never) - 5 (very often) … Encouraged you to be physically active?   0.85-0.87
- friends 6 / 1 (never) - 5 (very often)    0.87-0.88
Self-efficacy 7 / 1 (not at all confident) - 7 (very confident) I am confident I can participate in planned physical activity when… I am tired [48] 0.87-0.89
Outcome expectancies 6 / 1 (unlikely) – 7 (very likely) If I am regularly physically active in the next month… Iwill get in better shape   0.85-0.89