Final answer:
Ambivalence is typically associated with the Precontemplation or Contemplation stages of the Stages of Change model, where an individual has mixed feelings about making a behavioral change.
Step-by-step explanation:
Ambivalence often occurs in the Precontemplation or Contemplation stages of the Transtheoretical Model (often known as the Stages of Change model) in behavioral psychology. Ambivalence refers to the experience of having mixed or contradictory feelings about something, which is common when an individual is considering making a change but is not yet ready to commit. In the Precontemplation stage, the individual may not yet have acknowledged that there is a problem behavior that needs to change, while in the Contemplation stage, they may be aware of the problem but are not ready or are unsure about wanting to make a change.