Final answer:
Carl Rogers emphasized the necessity of role-taking in therapy, promoting empathy, genuineness, and unconditional positive regard for client's moral and psychological growth.
Step-by-step explanation:
The person who believes that the skill of role-taking is important for both moral and psychological growth between the counselor and the client is Carl Rogers. Carl Rogers pioneered the client-centered therapy approach, emphasizing the therapist's provision of genuineness, empathy, and unconditional positive regard towards the client. These conditions, he argued, were crucial for clients to effectively deal with their problems. While Sigmund Freud's psychoanalytic theory, Erik Erikson's psychosocial theory, and Jean Piaget's cognitive development theory have significantly influenced psychology, it is Rogers' focus on the therapeutic relationship that directly pertains to the skill of role-taking. Rogers maintained that for a person to grow and fulfill their potential, it is necessary for them to feel understood and valued, and this necessitates the therapist to possess the ability to take on the role of the client.