I-Change Model
In psychology, the I-change model or the integrated model, for explaining motivational and behavioral change, derives from the Attitude – Social Influence – Self-Efficacy Model, integrates ideas of Ajzen's Theory of Planned Behavior, Bandura's Social Cognitive Theory, Prochaska's Transtheoretical Model, the Health Belief Model, and Goal setting theories. Previous versions of this model have been used to explain a variety of types of health behavior.
Phases of behavioral change
The I-Change Model is a phase model and assumes that at least three phases in the behavioral change process can be distinguished:
1. Awareness; 2. Motivation; 3. Action. For each phase particular determinants are more relevant.
Awareness of a particular problem in a person is the result of accurate knowledge and risk perceptions of the person about his own behavior may also prompt a person to become more aware of a particular risk and the need to adopt a particular health behavior.
Motivation
Motivation to change a behavior depends on a person's attitude, social influence beliefs and self-efficacy expectations. The ultimate result in level of motivation to adopt a health behavior can be measured by intentions, a concept derived from Fishbein & Ajzen's Theory of Reasoned Action or related concepts such as the stage of change concept of the Transtheoretical Model of Prochaska.
Action
Intentions do not necessarily lead to behavior. Factors determining action, besides a positive intention, are again self-efficacy, action planning and goal setting. With regard to action planning we distinguish preparation planning, initiation planning and coping or maintenance planning. Additionally, the development of skills required for the new health behavior is needed as well.
The I-Change Model assumes that these motivational processes are determined by various predisposing factors such as behavioral factors, psychological factors, biological factors, social and cultural factors, and information factors.