Which stage is NOT part of the stages of change model?

The stages of change model, also known as the Transtheoretical Model, outlines a series of stages individuals typically go through when changing behavior, particularly in the context of addiction and recovery. The correct answer here identifies "Post-contemplation" as not being one of the official stages recognized within this model.

The established stages include:

1. Pre-contemplation: The individual is not yet considering change and may be unaware of the need to change their behavior.
2. Contemplation: The individual recognizes the need for change and begins to contemplate the benefits and drawbacks of changing their behavior.
3. Preparation: The individual intends to take action soon and starts making small steps toward change.
4. Action: The individual actively modifies their behavior to bring about change and implements strategies to do so.
5. Maintenance: The individual works to maintain the changes made and prevent relapse into old behaviors.

Since "Post-contemplation" is not defined as a stage in this model, the inclusion of "Post-contemplation" would not be accurate. Understanding these distinct phases is crucial for implementing effective counseling strategies and guiding individuals through their journey of change.