Table 6.

Factor analysis for physical activity change strategies scale (N = 512)

How often you do each of the following....	Factor loadings
I say positive things to myself about physical activity	0.71
I set goals to do physical activity	0.70
I do things to make physical activity more enjoyable	0.70
When I get off track with my physical activity plans, I tell myself I can start again and get right back on track	0.70
I keep track of how much physical activity I do	0.67
I reward myself for being physically active	0.66
I look for information about physical activity or sports	0.61
I try different kinds of physical activity so that I have more options to choose from	0.59
I make back-up plans to be sure I get my physical activity	0.59
I put reminders around my home to be physically active	0.57
I find ways to get around the things that get in the way of being physically active	0.56
I have a friend or family member who encourages me to do physical activity	0.55
I try to think more about the benefits of physical activity	0.53
I think about the benefits I will get from being physically active	0.52
I think about how my surroundings affect the amount of physical activity I do (Surroundings are things like having exercise equipment at home or a park near by)	0.46
Eigen value	5.7
% variance explained	38.6
Choronbach's alpha	0.78
Mean inter item correlation	0.34
Pearson test-retest*	0.74

*Test-retest stability with a 15-day interval (n = 93)