Problem: All of these theories actually work well together. Behaviorism explains how behaviors are learned, cognitive theories explain how thinking develops, and psychoanalytic and psychosocial theories explain emotional and social development. When combined, they give a more complete picture of human development instead of focusing on just one area. If I had to choose one theory, I would pick Erikson's psychosocial theory. I like it because it applies to every stage of life and focuses on real-life challenges people face, like building trust, developing independence, and finding purpose. Even though no single theory explains everything, Erikson's theory feels the most realistic and easy to connect to everyday experiences. positive response please. Need Assignment Help?