The authors investigated the evolution of psychotherapeutic skills over time in a group of psychiatric residents in their third year of training. A 29-item Supervisors Evaluation Scale measuring psychotherapy skills was developed. Each resident who began his or her clinical experience in conducting individual analytically oriented psychotherapy was rated by his or her supervisors on this scale toward the beginning of training and again 8 months later. Statistically significant changes were found for 7 of the skills measured. The authors feel that these may reflect those aspects of psychotherapy which the beginning therapist can readily learn with supervision and experience.