SCT constructs in predicting PA for both type 1 and type 2 groups. In all,
2,311 individuals with type 1 or type 2 diabetes were assessed on their selfefficacy,
outcome expectancies, impediments, social support, goals, and physical
activity at baseline and 1,717 (74.5%) completed these assessments again
at 6 months. Multi-group Structural Equation Modeling was conducted. The
findings provide evidence for the utility of the SCT in the diabetes samples.
The SCT fits individuals with type 1 and type 2 diabetes except for SCT
impediments, which appear to be obstructing goal-setting in individuals
with type 2 diabetes only. Promotion of health behavior should target selfefficacy
to set goals and change behavior. Outcome expectancies and
social support are also important factors for setting goals and behavior
performance.