Final answer:
Humanistic psychology aligns with existential philosophy in that it views individuals as products of their own choices, emphasizing free will and self-actualization.
Step-by-step explanation:
Humanistic psychology relies upon the existential philosophy where individuals are a product of their own personal choices. This contrasts with the behavioral perspective, which sees behavior primarily shaped by prior learning and environmental reinforcements.
Humanism, with proponents like Abraham Maslow and Carl Rogers, arose as a response to the reductionist views of behaviorism and psychoanalysis, emphasizing free will and the innate potential for self-actualization. Existentialism, closely tied to humanistic psychology, holds that humans are free to make choices and are responsible for the consequences. This leads to an individualistic view of people shaping their personal growth and life paths based on their decisions.