Investigating the Effectiveness of Mindfulness-Based Cognitive Therapy to Reduce Shyness and Increase the Assertiveness Puberty Girls

Shyness is significant trait that influences wildly internal and external disorders in adolescents. This study investigated the effectiveness of mindfulness-based cognitive therapy in the treatment of shyness and assertiveness failure puberty girls. The research method was quasi-experimental design with pre-test and post-test with two experimental and control groups. The population of the study is all female high school students (school year 95-94) (7th and 8th grades) that studied in Regions 7 and 3 in Tehran. 4 schools were selected using simple random sampling. After a test run shyness and assertiveness in the 4 schools, 30 people who agreed to receive 10 sessions of treatment were selected in available and randomly assigned to two experimental and control group. For experimental groups 10 one-hour sessions of mindfulness-based cognitive therapy was performed. Then both groups were post analysis of covariance was used to analyze the test data. The findings showed that mindfulness-based cognitive therapy have had significant effect to reduce shyness and increase assertiveness (P