Final answer:
Humanistic-existential therapies believe psychopathology arises from unfulfilled potential and existential struggles, emphasizing free will, self-determination, and the potential for personal growth.
Step-by-step explanation:
Humanistic-existential therapies are based in the belief that psychopathology is a result of a lack of fulfillment in one's innate potential and the struggle with issues of existence such as personal responsibility and finding meaning in life. According to humanistic psychologists like Abraham Maslow and Carl Rogers, people have an inherent drive to achieve self-actualization, becoming the best versions of themselves. They stress on free will, self-determination, and the human capacity for growth. Existentialism, on the other hand, puts a strong emphasis on human freedom and personal responsibility to shape one's own life.
These therapeutic approaches contrast with behaviorism and psychoanalysis by focusing on the human experience, personal control, and a predisposition towards goodness and growth, rather than strictly deterministic factors. Roger's client-centered therapy and its key components—unconditional positive regard, genuineness, and empathy—are reflections of this perspective.