摘要：Aim. This paper reports a study testing the effect of Rational- emotive behavior therapy (REBT) on pain intensity among Cancer patients in Iran. Background. Previous studies have found REBT to be effective in decreasing of different forms of pain. However, the effect of REBT on pain among cancer patients has not been investigated. Method. A quasi-experimental, pre-post test study was carried out with a convenience sample of 28 Cancer patients, aged 21–52 years, whom refer to the Shahidzade hospital of behbahan in Iran. They were randomly assigned to the experimental (n = 14) and control (n = 14) groups. Pain was measured with The McGill Pain Questionnaire - MPQ (1975), the intervention by REBT has given to the experi
