Background: In all scientific research, research ethics guaranteed research quality. This article offers a causal model of psychological and educational variables that affecting research ethics among the students of according to improve the ethical points.
Method:   This was an applied correlation-descriptive study. The population consisted of 730 students of Allameh Tabataba'i University, among which 252 subjects were selected through stratified random sampling. Data collection tool was a compilation of five standardized questionnaires. The collected data were analyzed using descriptive statistics tests and the correlation matrix, path analysis and goodness of fit indices using Lisrel 8. 5. 
Results: The results of path analysis showed that conscientiousness, perceived severity of the punishment, the research ethics education and religious attitudes had the highest to lowest influences on research ethics, but the impact of self-regulation on the criterion variable was not confirmed
Conclusion: According to the findings of the research, entering clear strategies for monitoring the research activities and regarding ethical codes in student’s curriculum may improve ethics in research.