ACE Personal Trainer Practice Exam

Which stage is NOT part of the Transtheoretical Model of Change?

1. Preparation

2. Implementation

3. Contemplation

4. Maintenance

The correct answer is: Implementation

The Transtheoretical Model of Change, developed by Prochaska and DiClemente, outlines a series of stages that individuals progress through when changing behavior. These stages include Precontemplation, Contemplation, Preparation, Action, and Maintenance. The stage that does not fit within this model is the one that refers to "Implementation." While individuals certainly implement changes as they move through various stages, the official stages defined by the model are distinct and do not include a phase explicitly labeled as "Implementation." Instead, the stages focus on the progression from initial awareness of the need for change all the way through to the maintenance of new behaviors. By understanding this model, personal trainers can better tailor their approach based on where their clients are in the process of change, using the established stages to guide interventions and support.