Effectiveness of Assertiveness on Decreased Social Anxiety and Increased Self-Esteem and Self-Efficacy in Female Students

The study was carried out with the aim of determining Effectiveness of assertiveness on decreased social anxiety, increased self-esteem and self-efficacy in female, high school students. The present research was a clinical practice of semi-experimental design with pre-test, post -testand control group. The statistical population of this research included first grade, female high school students in region 4 of Tabriz in the educational year of 2012-2013. At first, 200 students were selected by cluster sampling method as an initial sample and after performing assertiveness test, 60 ones who had low self-assertiveness skill were chosen. Then, these students were divided into two groups experimental (n=30) and control group (n=30). Before intervention, Watson & Friend social anxiety Questionnaire, Cooper Smith Self-esteem Questionnaire and Sherer general self-efficacy Questionnaire were administered as pre-test on students of both groups. Then intervention was carried out in 8, 90 min sessions. After intervention stage, again social anxiety, self-esteem, and self-efficacy questionnaires were carried out on students. The obtained data was analyzed using descriptive statistical methods (mean, standard deviation) and referential statistical methods (ANCOVA). The results of ANCOVA showed that the effect of experiment factor i.e. instructing assertiveness was significant (p