In his presentation at the Round Table Discussion in 1956, Lewis R. Wolberg addresses some factors that can make psychotherapy successful. He focuses on factors that are common in all good therapies irrespective of their specific theoretic and methodological systems. In Dr. Wolberg's view, therapeutic improvement is a process of restoration of the patient's sense of mastery, the result of a constructive use of the therapeutic relationship. He sees the function of the therapist as a catalyst for change during the therapeutic process and emphasizes the importance of therapist's personality and technical skills.