The Effect of Self-Differentiation Therapy on Assertiveness of Female Students of Allameh Tabataba i University

The present study aims to study the effectiveness of selfdifferentiation therapy on assertiveness of female students of Allameh Tabataba’i University. The research employed a semi-experimental design with pre-test and post-test. Using convenience sampling method, 20 subjects were selected from among first-year undergraduate female students of the Faculty of Psychology and Educational Sciences, Allameh Tabataba’i University. The sample populated was randomly assigned into two groups, namely experiment and control groups, each consisting of 10 people. The experiment group received 8 sessions of self-differentiation therapy. The control group received no intervention. The data was analyzed using Covariance analysis. The results showed that self-differentiation therapy was effective on improvement of assertiveness (P<0.01). Generally, it can be concluded that self-differentiation therapy helped to increase the level of assertiveness of the participants.