A HUMAN RELATIONS TRAINING LABORATORY WAS CONDUCTED TO PROVIDE TRAINING IN INTERPERSONAL RELATIONS FOR DIETETIC INTERNS AND OCCUPATIONAL THERAPISTS. GENERAL OBJECTIVES OF THE TRAINING WERE--TO HELP STUDENTS BECOME MORE AWARE OF THEIR OWN BEHAVIOR, OF LEADERSHIP STYLES, WAYS OF RECEIVING CRITICISM, AND MODES OF DEALING WITH OTHERS. THE ONE-WEEK TRAINING SESSION CONSISTED OF LECTURES, EXERCISES IN GROUP DYNAMICS, AND ROLE PLAYING. GROUP DISCUSSIONS WERE SELF-DIRECTED. THE SESSION WAS EVALUATED THROUGH THE USE OF THE FIRO-1 SCALES ADMINISTERED BEFORE AND AFTER TRAINING OF THE LABORATORY GROUP, AND TO A COMPARABLE GROUP OF DIETETIC INTERNS WHO DID NOT RECEIVE THE TRAINING. ANALYSIS OF VARIANCE REVEALED SIGNIFICANT GAINS FOR THE TRAINED GROUPS, BUT NOT FOR THE CONTROLS, IN SCORES FOR PERSONALNESS-AFFECTION AND EXPRESSIVENESS-INCLUSIVENESS SCALES. PARTICIPANT SATISFACTION WAS REVEALED BY OTHER RATING SCALES, PARTICULARLY FOR THE SMALL GROUP ACTIVITIES. THIS ARTICLE APPEARED IN JOURNAL OF HEALTH AND HUMAN BEHAVIOR, VOLUME 7, NUMBER 3, FALL 1966. (AUTHOR/PT)