Group supervision is a commonly employed method in graduate psychology training. The present study examines the role of group processes in the formation of professional identity among 129 Israeli graduate students following the conclusion of their supervision process. The following three identity statuses were identified: achievement, diffusion, and moratorium. Working alliance and group engagement were significantly higher for achievement students and differentiated between achievement and moratorium students. Cohesion was significantly lower for moratorium students than for students at each of the other two identity statuses. All differences were maintained when controlling for anxiety. Finally, working alliance was found to be the dominant process in predicting committed Keren Hanetz Gamliel, Ph.D., is a lecturer and head of the clinical child track in the graduate program in clinical psychology, School of Behavioral Sciences at The Academic College of Tel Aviv-Yaffo, Israel. She is a supervising clinical psychologist and works in a private clinic. Shulamit