Dissertation (MSc Nursing Education)The acquisition of knowledge, skills and attitude in provision of health care services is an important package in order to bring nursing competence, this calls for innovative teaching methodologies due to lack of nursing clinical competence. Objective: To assess the effect of simulation based teaching on improving competence among diploma student nurses, for the prevention of post-partum hemorrhage in Dodoma Tanzania. Methodology: The study was a Quantitative approach by utilizing quasiexperimental study design (a pre and post-test with control group).The interventional group used simulation while the comparison group used traditional lecture method. Both descriptive and inferential analysis were carried out as per objective of the study. Results: The mean score difference of knowledge in the control group was; (M = 26.21; SD = 4.940) while in the intervention (M = 33.79; SD = 2.523). The mean score difference of psychomotor skills in the control group was less (M = 21.23; SD = 5.131) against the intervention who scored high (M = 30.98; SD = 2.824). The mean score difference of attitude in the control group scored less (M = 8.21; SD = 1.588) while in the intervention group scored (M = 10.60; SD = 1.901). Sex and Marital status were associated with psychomotor skills changes, in which, sex (B = 0.771; p< 0.05; 95% CI: 0.325–5.321), and marital status (B = 1.879; p< 0.01; 95% CI: 1.009 - 10.725), while attitude change was associated with age and marital status, age (B = 0.205; p< 0.01; 95% CI: 0.470 - 3.086), and marital status (B = 1.171; p< 0.05; 95% CI: 0.003 – 2.184). Conclusions: simulation has shown a positive effect on improving competence among diploma student nurses for the prevention of postpartum hemorrhage, hence the recommendation on the use of simulation teaching is emphasized to be in place.