Humanistic psychology emerged in the mid-20^th century as a response to the deterministic and pessimistic nature of behaviorism and psychoanalysis. While behaviorism focused on observable behaviors influenced by the environment and psychoanalysis delved into unconscious motivations, both theories suggested that human actions lacked free will. In contrast, humanistic psychology offers a perspective that emphasizes the innate potential for goodness and growth within every individual.

This approach introduces several core principles. Firstly, it asserts the inherent goodness of all people, suggesting that everyone has the potential for good. It also emphasizes individual autonomy, encouraging personal growth, self-actualization, and the freedom to choose one's path. The perspective of humanistic psychology sharply contrasts with the deterministic views of earlier theories. Humanistic psychology adopts a holistic approach, considering the whole person rather than reducing individuals to mere parts or behaviors. Additionally, while primarily employing qualitative research methods to embrace the complexity of human experiences, it also incorporates quantitative studies in areas like happiness, self-concept, and the effectiveness of psychotherapy.

Abraham Maslow and Carl Rogers made significant contributions to this field. Maslow is best known for his hierarchy of needs theory, which describes human motivation as a progression from basic survival needs like food and safety to higher psychological needs and ultimately to self-actualization. This model is particularly reflective of humanistic psychology's focus on the positive potential of humans. Carl Rogers introduced client-centered therapy. This therapeutic technique empowers individuals by fostering an environment filled with unconditional positive regard, genuineness, and empathy from the therapist. By placing the client at the center of the therapeutic process, this approach facilitates personal growth and self-understanding.

Overall, humanistic psychology has significantly influenced the fields of psychology, therapy, and personal development, promoting a more optimistic view of the human condition. However, it is not without its criticisms. Some argue that its emphasis on individual potential and self-actualization may overlook the influence of social and cultural factors on human behavior. This criticism suggests that humanistic psychology's focus on the individual may not fully account for the impact of societal norms, cultural values, and social structures on human behavior. Others question the scientific rigor of its methods, particularly its reliance on qualitative research. Critics argue that qualitative research, while valuable for understanding individual experiences, may lack the objectivity and generalizability of quantitative research. Despite these critiques, humanistic psychology remains a crucial aspect of psychological practice and research today, continuing to advocate for an understanding of people as inherently capable of positive growth and self-direction.