The Transtheoretical Model also sometimes called the Stages of Change model developed by Prochaska and DiClemente has been a huge gift to the substance abuse field in helping us assess where people are at in the change process.
The stages as described in the Wikipedia are as follows:
Pre-Contemplation is the stage in which an individual has no intent to change behavior in the near future,usually measured as the next 6 months. Precontemplators are often characterized as resistant or unmotivated and tend to avoid information, discussion, or thought with regard to the targeted health behavior (Prochaska et al., 1992).
Contemplation stage. Individuals in this stage openly state their intent to change within the next 6 months. They are more aware of the benefits of changing, but remain keenly aware of the costs (Prochaska, Redding, & Evers, 1997). Contemplators are often seen as ambivalent to change or as procrastinators (Prochaska & DiClemente, 1984).
Preparation is the stage in which individuals intend to take steps to change, usually within the next month (DiClemente et al., 1991). PR is viewed as a transition rather than stable stage, with individuals intending progress to A in the next 30 days (Grimley, Prochaska, Velicer, Blais, & DiClemente, 1994).
Action stage is one in which an individual has made overt, perceptible lifestyle modifications for fewer than 6 months (Prochaska et al., 1997).
Maintenance: these are working to prevent relapse and consolidate gains secured during A (Prochaska et al., 1992). Maintainers are distinguishable from those in the A stage in that they report the highest levels of self-efficacy and are less frequently tempted to relapse (Prochaska & DiClemente, 1984).
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This is article #1 in a series on the Transtheoretical Model.
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