University of Tabriz Journal of Modern Psychological Researches 2322-3340 16 64 2022 02 20 Effectiveness of Dialectical Behavior Therapy Techniques In Improving The Symptomes Of Bulimia Nervosa Effectiveness of Dialectical Behavior Therapy Techniques In Improving The Symptomes Of Bulimia Nervosa 48 58 13014 FA Parisa Pourmohammad PhD Candidate,Department of psychology, Shiraz university, Shiraz, Iran Journal Article 2019 06 18 Introduction: Bulimia nervosa is one of the eating and feeding disorders which is more prevalent in youth and endangers psychological and physical health of the sufferers. Variuos theoretical and Therapeutic approaches have been established for this disorder. Dialectical behavior witch targets emotion disregulation in these people, is among newest treatment approaches for this disorder. The aim of this research is to investigate the effectiveness of the techniques based on dialectical behavior therapy in improving the symptoms of bulimia nervosa in these patients.<br />Materials and Method: This study is based on the framework of single case experimental plan of multiple- baseline type. two patients with bulimia nervosa were chosen by using purposeful method and based on Structured Clinical Interview for DSM-5 Axis I Disorders(SCID) and inclusion and exclusion criteria. Instument used to measure variables included EDI. Clients filled the instrument in the pretrement, and session 5, 7, 11 and one month follow up.The manual-based dialectical behaviora therapy was performed in 11 weekly sessions on the patiants. data was analized by using visual inspection, improvement percentage and effect size(cohen’d).<br />Results: The results of visual inspection and calculating improvement percentage and effect size showed that DBT is effective in improving the symptoms of bulimia nervosa.<br />Conclusions: According to the results of this research, DBT, as a new approach, can be usueful in decreasing the symptoms of bulimia nervosa. Introduction: Bulimia nervosa is one of the eating and feeding disorders which is more prevalent in youth and endangers psychological and physical health of the sufferers. Variuos theoretical and Therapeutic approaches have been established for this disorder. Dialectical behavior witch targets emotion disregulation in these people, is among newest treatment approaches for this disorder. The aim of this research is to investigate the effectiveness of the techniques based on dialectical behavior therapy in improving the symptoms of bulimia nervosa in these patients.<br />Materials and Method: This study is based on the framework of single case experimental plan of multiple- baseline type. two patients with bulimia nervosa were chosen by using purposeful method and based on Structured Clinical Interview for DSM-5 Axis I Disorders(SCID) and inclusion and exclusion criteria. Instument used to measure variables included EDI. Clients filled the instrument in the pretrement, and session 5, 7, 11 and one month follow up.The manual-based dialectical behaviora therapy was performed in 11 weekly sessions on the patiants. data was analized by using visual inspection, improvement percentage and effect size(cohen’d).<br />Results: The results of visual inspection and calculating improvement percentage and effect size showed that DBT is effective in improving the symptoms of bulimia nervosa.<br />Conclusions: According to the results of this research, DBT, as a new approach, can be usueful in decreasing the symptoms of bulimia nervosa. https://psychologyj.tabrizu.ac.ir/article_13014_58caf51b75ce430b3d1f31af378452ed.pdf