Tehran University of Medical Sciences Journal of Biostatistics and Epidemiology 2383-4196 6 2 2020 12 13 115 119 Elham Nazari Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Mohammad Hasan Shahriari Department of Medical Informatics, Faculty of Medicine, Shahid beheshti University of Medical Sciences, Mashhad, Iran. Hamed Tabesh Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran 2020 07 11 2020 08 18 Background: The rapid outbreak of Coronavirus has led to the worrying situation. Prevention strategies such as a stay at home offer great opportunities for transmission reduction of the virus. Therefore, the purpose of current study has developed a questionnaire to investigate the reasons for not staying at home in Iran. Methods: In this study a self-administered questionnaire was designed in two Delphi rounds and based on 50 expert and 10 expert opinions from different fields of study. Results: In the first Delphi round 11 questions were obtained and in the second round 14 questions were confirmed. The mean of CVR and CVI for the questionnaire was 95.33 and 94.67, respectively. A questionnaire was designed and developed according to the purpose. Conclusion: Using the designed questionnaire, the reasons why some people do not pay attention to home quarantine can be examined and solutions can be considered for them. This can prevent further corona spread. https://jbe.tums.ac.ir/index.php/jbe/article/view/357