en مقایسه اثربخشی آموزش‌مثبت‌اندیشی با و بدون افشاءنوشتاری و درمان اکت (تعهد و پذیرش) بر استرس ادراک شده در زنان مبتلا به سرطان‌پستان روان شناسی تکاملی Evolutionary Psychology پژوهشي Original <div style="text-align: justify;"><span style="color:#3300ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:115%"><span style="line-height:115%">The aim of this research was to study the comparison effect of the positive thinking training with and without written disclosure and acceptance and commitment therapy on perceived stress in women with breast cancer. This design of the study was pretest, posttest control group. The sample include 60 women with breast cancer (15 group experimental 1 (positive thinking training with written disclosure), 15 group experimental 2 (positive thinking training), 15 group experimental 3 (acceptance and commitment) and 15 group control) were randomly assigned.&nbsp; The perceived stress Cohen et al. (1983) scale was used to collect data. For analyzing the results we used covariance (MANCOVA and ANCOVA) and Bonferroni test. The results indicated that positive thinking training with written disclosure; positive thinking training without written disclosure and ACT decreased the perceived stress in women with breast cancer in three experimental groups in comparison to the control group. According to results the positive thinking training with written disclosure was more effective compare to positive thinking training without&nbsp;written disclosure and ACT on the&nbsp;perceived stress in women with breast cancer.</span></span></span></span></span><br> &nbsp;</div> Positive thinking training, written disclosure, acceptance and commitment therapy, perceived stress 51 63 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-267-2&slc_lang=en&sid=1 Mojtaba Moeinvaziri مجتبی معین وزیری mf_vaziri@yahoo.co 10031947532846006669 10031947532846006669 No Department of Health Psychology, Khorramshahr-Persian Gulf International Branch, Islamic Azad University, Khorramshahr, Iran گروه روانشناسی سلامت،واحد بین الملل خرمشهر-خلیج فارس،دانشگاه آزاد اسلامی،خرمشهر،ایران Parvin Ehteshamzadeh پروین احتشام زاده Mf_vaziri@yahoo.com 10031947532846006670 10031947532846006670 Yes Associate Professor, Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran دانشیار، گروه روانشناسی،واحد اهواز،دانشگاه آزاد اسلامی،اهواز،ایران Farah Naderi فرح نادری 10031947532846006671 10031947532846006671 No Professor, Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran استاد، گروه روانشناسی،واحد اهواز،دانشگاه آزاد اسلامی،اهواز،ایران Sahar Safarzadeh سحر صفرزاده 10031947532846006672 10031947532846006672 No Assistant Professor, Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran استادیار، گروه روانشناسی،واحد اهواز،دانشگاه آزاد اسلامی،اهواز،ایران