In the model for five stages of change, at what stage does the client become aware that change is needed but is still struggling with required sacrifice?

In the context of the model for five stages of change, the stage where a client becomes aware that change is needed but struggles with the sacrifices required for that change is indeed the contemplation stage. At this point, the individual recognizes the benefits of changing their behavior but may feel ambivalent about the effort and adjustments necessary to achieve those changes.

Contemplation is characterized by a growing awareness of the disadvantages of remaining in their current state and the potential advantages of making a change. However, clients in this stage often have mixed feelings and may struggle with fears or uncertainties about what the needed sacrifices will entail. This internal conflict is a critical aspect of the contemplation stage, as it reflects a pivotal moment where clients weigh their desire for change against the challenges it may present.

The other stages involve different levels of readiness and commitment to change: pre-contemplation is a stage of not recognizing problems; preparation involves planning and readying oneself for action; and action is when individuals actively engage in their new behaviors.