Table 1

Internal consistency (alpha) of ESES items.

ESES Items: I am confident
Alpha for Scale .9269 Alpha if Item deleted
(n = 368)
Alpha for Scale .8700 Apha if Item deleted (n = 53)
Mean
(n = 368)
SD
(n = 368)

• that I can overcome barriers and challenges with regard to physical activity and exercise if I try hard enough (ES1)
.9234
.863
3.2582
.8027
• that I can find means and ways to be physically active and exercise (ES2)
. 9153
.850
3.3533
.8450
• that I can accomplish my physical activity and exercise goals that I set (ES3)
.9167
.855
3.1739
.8268
• that when I am confronted with a barrier to physical activity or exercise I can find several solutions to overcome this barrier (ES4)
.9174
.853
3.1359
.8073
• that I can be physically active or exercise even when I am tired (ES5)
.9192
.856
2.8152
.8881
• that I can be physically active or exercise even when I am feeling depressed (ES6)
.9216
.866
2.9918
.9116
• that I can be physically active or exercise even without the support of my family or friends (ES7)
.9189
.851
3.2092
.9666
• that I can be physically active or exercise without the help of a therapist or trainer (ES8)
.9221
.857
3.2989
.9470
• that I can motivate myself to start being physically active or exercising again after I've stopped for a while (ES9)
.9162
.857
3.2880
.8912
• that I can be physically active or exercise even if I had no access to a gym, exercise, training, or rehabilitation facility (ES10)
.9231
.868
3.2446
.9367

Kroll et al. International Journal of Behavioral Nutrition and Physical Activity 2007 4:34   doi:10.1186/1479-5868-4-34