3) Freud thinks that there are important mental events which effect how a person acts. His theory shows pieces of both free will and Determinism. He thinks actions are caused by subliminal elements in the psyche. Those events, because we don't realize they are affecting behavior, predetermine our reactions to events. But on the other hand, he thinks that a person can combat these latent-determining factors through therapy, he gives control back to the person.

Skinner's Contingency Management theory seems to rely completely in the realm of free will. His idea of positive reinforcement relies on environment to change behavior....

A person enjoys or dislikes the reaction that comes from their actions. They repeat the action that causes them to get the enjoyable effect. The person makes a choice to act in a way that gives them a desired result.
Carol Rogers' belief in a drive toward self-actualization is mostly free will driven. He thinks that the combination of biological -- Determinism -- and learned elements of a person's psyche drive them to move in positive directions. Though he allows for determined elements to play a part, his thought that a person chooses to move in positive directions suggests that he has a large belief in the power of individual choice.