This study was designed as a pre-test-post-test parallel-group, randomized controlled experimental design. The research will be conducted at the Radiation Oncology Clinic of Necmettin Erbakan University Faculty of Medicine Hospital, Republic of Turkey. Caregivers of prostate cancer patients will be randomly divided into two groups: experimental group (31) and control group (31). For the experimental group: A web-based reinforcement program based on uncertainty theory will be applied. For the control group: No application will be made to the caregivers. The primary outcome of this study is to determine the intolerance to uncertainty scores of caregivers of prostate cancer patients. The secondary outcome is to determine the caregiving burden of caregivers.
