The Action Stage is the fourth stage of change in the Transtheoretical Model and represents the time in a person's treatment where they are actively participating in their own recovery. The person has admitted their use is problematic and they are actively doing something to change this.
The Transtheoretical Model (also called the Stages of Change Model) was developed by Prochaska and DiClemente in the late 1970s. This model focuses on the decision-making of the individual and is a model of intentional change. The Transtheoretical Model operates on the assumption that people do not change behaviors quickly and decisively. Rather, change in behavior, especially habitual behavior, occurs continuously through a cyclical process.
The stages in this model are as follows: