This study was to develop and evaluate the self-efficacy and resilience of the Breast Cancer Self-Care App in newly diagnosed breast cancer patients undergoing chemotherapy. In the first phase of this study, develop a prototype the Breast Cancer Self-Care App by conducting patients interviews. In the second phase, an experimental two-group pretest-posttest quantitative study design to evaluate the self-efficacy and resilience of the Breast Cancer Self-Care App in newly diagnosed breast cancer patients undergoing chemotherapy. The patients were randomized to the experimental and control groups. Patients in the control group received general routine care and patients in the experimental group received general routine care plus the Breast Cancer Self-Care App intervention. Both groups completed a basic demographics, self-efficacy and resilience questionnaires at the pre-test and after four weeks.
