The aim of this study was to determine the effectiveness of psychodrama on the attachment styles of young adults and to assess the qualitative gains of psychodrama participants. The subjects of the study were 21 master's level students. Data were gathered by using the Experiences in Close Relationships-Revised (ECR-R) form and a personal information form. The study used the mixed method. The quantitative aspect of the study involved the use of pretest-posttest experimental and control group design with random assignment, while the qualitative aspect utilized the methods of case study, observation and interview. A 12-session psychodrama program extending over 3 months was implemented with the experimental subjects, while the control subjects underwent a placebo study. The quantitative findings showed that participating in the group psychodrama program was effective on the anxious attachment style of young adults. However, no meaningful difference existed between the experimental and control groups regarding the anxiety dimension. The qualitative findings, on the other hand, suggested that psychodrama participants improved themselves in understanding the self; developing insight; having awareness of attachment styles; natural and forthcoming in their relationships; having self-confidence; developing listening, empathy and coping skills; and seeing life from a more hopeful perspective. (C) 2010 Elsevier Inc. All rights reserved.