The Stages of Change Model,
This model use the process of starting and maintaining change. The main idea of this model is that change is a multi-step process instead of a instant thing. The steps of change are pre-contemplation, contemplation, preparation, action, maintenance. These steps can happen in any order, and do not follow a specific time line.
The Health Belief Model,
This model believes behaviors are predicted by a set of core beliefs. The core beliefs affect the individuals perception of their susceptibility